diff --git a/public/json/cats.json b/public/json/cats.json
index 84d9d1b2431..0f8ce22a69e 100644
--- a/public/json/cats.json
+++ b/public/json/cats.json
@@ -2,6 +2,7 @@
   {
     "id": 0,
     "imageLink": "https://s3.amazonaws.com/freecodecamp/funny-cat.jpg",
+    "altText": "A white cat wearing a green helmet shaped melon on it's head. ",
     "codeNames": [
       "Juggernaut",
       "Mrs. Wallace",
@@ -11,6 +12,7 @@
   {
     "id": 1,
     "imageLink": "https://s3.amazonaws.com/freecodecamp/grumpy-cat.jpg",
+    "altText": "A white cat with blue eys, looking very grumpy. ",
     "codeNames": [
       "Oscar",
       "Scrooge",
@@ -20,6 +22,7 @@
   {
     "id": 2,
     "imageLink": "https://s3.amazonaws.com/freecodecamp/mischievous-cat.jpg",
+    "altText": "A ginger cat with one eye closed and mouth in a grin-like expression. Looking very mischievous. ",
     "codeNames": [
       "The Doctor",
       "Loki",
diff --git a/seed/challenges/01-front-end-development-certification/bootstrap.json b/seed/challenges/01-front-end-development-certification/bootstrap.json
index c8ea98fb5ee..858ba22bb6f 100644
--- a/seed/challenges/01-front-end-development-certification/bootstrap.json
+++ b/seed/challenges/01-front-end-development-certification/bootstrap.json
@@ -48,7 +48,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -141,7 +141,7 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -231,9 +231,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <p>Things cats love:</p>",
         "  <ul>",
         "    <li>cat nip</li>",
@@ -316,9 +316,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -409,9 +409,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <button class=\"btn\">Like</button>",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -511,9 +511,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <button class=\"btn btn-block\">Like</button>",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -599,9 +599,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <button class=\"btn btn-block btn-primary\">Like</button>",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -688,9 +688,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <button class=\"btn btn-block btn-primary\">Like</button>",
         "  <button class=\"btn btn-block btn-info\">Info</button>",
         "  <p>Things cats love:</p>",
@@ -783,9 +783,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <button class=\"btn btn-block btn-primary\">Like</button>",
         "  <button class=\"btn btn-block btn-info\">Info</button>",
         "  <button class=\"btn btn-block btn-danger\">Delete</button>",
@@ -884,9 +884,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\">Like</button>",
@@ -979,9 +979,9 @@
         "<div class=\"container-fluid\">",
         "  <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "",
-        "  <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\">Like</button>",
@@ -1077,9 +1077,9 @@
         "<div class=\"container-fluid\">",
         "  <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "",
-        "  <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\">Like</button>",
@@ -1178,10 +1178,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\">Like</button>",
@@ -1273,10 +1273,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
@@ -1357,10 +1357,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
@@ -1442,10 +1442,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
@@ -1534,10 +1534,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
@@ -1635,10 +1635,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
diff --git a/seed/challenges/01-front-end-development-certification/html5-and-css.json b/seed/challenges/01-front-end-development-certification/html5-and-css.json
index 5e89efbdee2..d0812afd52a 100644
--- a/seed/challenges/01-front-end-development-certification/html5-and-css.json
+++ b/seed/challenges/01-front-end-development-certification/html5-and-css.json
@@ -57,7 +57,7 @@
         "Notez que la seule différence entre une balise ouvrante et fermante est que la balise fermante a une barre oblique après son chevron ouvrant.",
         "Chaque défi contient des tests que vous pouvez éxécuter en cliquant sur le bouton \"Run tests\". Lorsque tous les tests sont réussis, vous pouvez poursuivre avec le défi suivant.",
         "Pour réussir le test de ce défi, changez le texte de l'élément <code>h1</code> pour \"Hello World\" plutôt que \"Hello\". Cliquez ensuite sur le bouton \"Run tests\"."
-      ],      
+      ],
       "title": "Say Hello to HTML Elements",
       "description": [
         "Welcome to Free Code Camp's first coding challenge.",
@@ -129,7 +129,7 @@
         "L'élément <code>h2</code> que vous entrerez créera un élément <code>h2</code> sur le site.",
         "Cet élément renseigne votre navigateur sur la structure de votre site. Les éléments <code>h1</code> sont souvent utilisés comme titre, tandis que les éléments <code>h2</code> sont généralement utilisés comme sous-titres. Il existe également les éléments <code>h3</code>, <code>h4</code>, <code>h5</code> et <code>h6</code> qui indiquent une nouvelle et différente section.",
         "Ajoutez une balise <code>h2</code> contenant \"CatPhotoApp\" pour créer un second <code>élément</code> HTML sous l'élément <code>h1</code> contenant \"Hello World\"."
-      ],      
+      ],
       "title": "Headline with the h2 Element",
       "description": [
         "Over the next few challenges, we'll build an HTML5 app that will look something like this:",
@@ -188,7 +188,7 @@
         "Vous pouvez créer un élément <code>p</code> comme ceci :",
         "<code>&#60;p&#62;Je suis une balise p!&#60;/p&#62;</code>",
         "Créez un élément <code>p</code> sous votre élément <code>h2</code> et inscrivez-y le texte \"Hello Paragraph\"."
-      ],    
+      ],
       "title": "Inform with the Paragraph Element",
       "description": [
         "<code>p</code> elements are the preferred element for normal-sized paragraph text on websites. P is short for \"paragraph\".",
@@ -244,7 +244,7 @@
         "Commenter est aussi un moyen pratique de rendre du code inactif sans devoir le supprimer entièrement.",
         "Vous pouvez débuter un commentaire avec <code>&#60;!--</code> et le terminer avec <code>--&#62;</code>.",
         "Décommenter vos éléments <code>h1</code>, <code>h2</code> et <code>p</code>."
-      ],      
+      ],
       "title": "Uncomment HTML",
       "description": [
         "Commenting is a way that you can leave comments within your code without affecting the code itself.",
@@ -302,7 +302,7 @@
         "Souvenez-vous que pour débuter un commentaire, vous devez utiliser <code>&#60;!--</code> et que pour le terminer, vous devez utiliser <code>--&#62;</code>.",
         "Ici vous devrez terminer le commentaire juste avant que l'élément <code>h2</code> commence.",
         "Commentez les éléments <code>h1</code> et <code>p</code>, mais laissez l'élément <code>h2</code> tel quel."
-      ],      
+      ],
       "title": "Comment out HTML",
       "description": [
         "Remember that in order to start a comment, you need to use <code>&#60;!--</code> and to end a comment, you need to use <code>--&#62;</code>",
@@ -356,14 +356,14 @@
         "Текст <code>lorem ipsum</code> применяется в качестве замещающего текста наборщиками с 16-го века, и эта традиция продолжается в сети.",
         "5 веков довольно долгий период. Так как мы строим приложение CatPhotoApp, давайте используем нечто называемое текстом <code>kitty ipsum</code>.",
         "Замените текст внутри вашего элемента <code>p</code> первыми двумя словами текста <code>kitty ipsum</code>: <code>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</code>"
-      ],  
+      ],
       "titleFR": "Remplissez les blancs avec du faux-texte",
       "descriptionFR": [
         "Les développeurs Web utilisent traditionnellement du <code>lorem ipsum</code> comme texte de substitution. Le texte lorem ipsum provient d'un extrait de Cicero, de la Rome antique.",
         "Le texte lorem ipsum a été utilisé comme faux-texte par des typographes depuis le 16<sup>ème</sup> siècle et cette tradition se poursuit sur le Web.",
         "Enfin, 5 siècles est suffisament long. Étant donné que nous fabriquons une application de photos de chats, utilisons plutôt du texte <code>Kitty ipsum</code>.",
         "Remplacez le texte à l'intérieur des éléments <code>p</code> avec ces quelques mots du texte Kitty ipsum : <code>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</code>"
-      ],      
+      ],
       "title": "Fill in the Blank with Placeholder Text",
       "description": [
         "Web developers traditionally use <code>lorem ipsum text</code> as placeholder text. The 'lorem ipsum' text is randomly scraped from a famous passage by Cicero of Ancient Rome.",
@@ -416,7 +416,7 @@
         "Notre téléphone n'a pas beaucoup d'espace vertical.",
         "Enlevons les éléments superflus pour débuter la construction de notre application de photos de chats.",
         "Supprimez l'élément <code>h1</code> afin de simplifier l'affichage."
-      ],      
+      ],
       "title": "Delete HTML Elements",
       "description": [
         "Our phone doesn't have much vertical space.",
@@ -481,7 +481,7 @@
         "Voici comment changer en bleu la couleur du texte de votre élément <code>h2</code> :",
         "<code>&#60;h2 style=\"color: blue\"&#62;CatPhotoApp&#60;/h2&#62;</code>",
         "Changez le style de votre élément <code>h2</code> pour que son texte soit de couleur rouge."
-      ],      
+      ],
       "title": "Change the Color of Text",
       "description": [
         "Now let's change the color of some of our text.",
@@ -554,14 +554,14 @@
       "descriptionFR": [
         "Avec CSS, il y a des centaines de <code>propriétés</code> que vous pouvez utliser pour changer l'apparence d'un élément dans votre page.",
         "Quand vous avez entré <code>&#60;h2 style=\"color: red\"&#62;CatPhotoApp&#60;/h2&#62;</code>, vous donniez à cet élément <code>h2</code> uniquement, un style <code>inline</code>.",
-        "C'est une des façons d'ajouter un style à un élément, mais une meilleure approche est d'utiliser <code>CSS</code>, acronyme de <code>Cascading Style Sheets</code>.",        
+        "C'est une des façons d'ajouter un style à un élément, mais une meilleure approche est d'utiliser <code>CSS</code>, acronyme de <code>Cascading Style Sheets</code>.",
         "Au sommet de votre code, créez un élément <code>style</code> comme ceci :",
-        "<blockquote>&#60;style&#62;<br>&#60;/style&#62;</blockquote>",                
-        "À l'intérieur de cet élément style, vous pouvez créer des <code>sélecteurs CSS</code> pour tous les éléments <code>h2</code>. Par exemple, si vous voulez que tous les éléments <code>h2</code> soient en rouge, votre élément style ressemblerait à ceci :", 
+        "<blockquote>&#60;style&#62;<br>&#60;/style&#62;</blockquote>",
+        "À l'intérieur de cet élément style, vous pouvez créer des <code>sélecteurs CSS</code> pour tous les éléments <code>h2</code>. Par exemple, si vous voulez que tous les éléments <code>h2</code> soient en rouge, votre élément style ressemblerait à ceci :",
         "<blockquote>&#60;style&#62;<br>&nbsp;&nbsp;h2 {color: red;}<br>&#60;/style&#62;</blockquote>",
         "Prenez note qu'il est important d'avoir les accolades ouvrantes et fermantes (<code>{</code> and <code>}</code>) autour de chaque élément de style. Vous devez aussi vous assurer que vos styles se retrouvent entre une balise style ouvrante et fermante. Finalement, assurez-vous d'ajouter un point-virgule â la fin de chacun des styles d'éléments.",
         "Supprimez les attributs de styles de votre élément <code>h2</code> et créez plutôt un élément de <code>style</code> CSS. Ajoutez le CSS nécessaire pour rendre tous vos éléments <code>h2</code> de couleur bleu."
-      ],      
+      ],
       "title": "Use CSS Selectors to Style Elements",
       "description": [
         "With CSS, there are hundreds of CSS <code>properties</code> that you can use to change the way an element looks on your page.",
@@ -1066,6 +1066,9 @@
         "You can add images to your website by using the <code>img</code> element, and point to a specific image's URL using the <code>src</code> attribute.",
         "An example of this would be:",
         "<code>&#60img src=\"https://www.your-image-source.com/your-image.jpg\"&#62</code>",
+        "All <code>img</code> elements <strong>must</strong> have an <code>alt</code> attribute. The text inside an <code>alt</code> attribute is used for screen readers to improve accessibility and is displayed if the image fails to load.",
+        "Lets add an <code>alt</code> attribute to our <code>img</code> example above:",
+        "<code>&#60img src=\"https://www.your-image-source.com/your-image.jpg\" alt=\"Author standing on a beach with two thumbs up. \"&#62</code>",
         "Note that in most cases, <code>img</code> elements are self-closing.",
         "Try it with this image:",
         "<code>https://bit.ly/fcc-relaxing-cat</code>"
@@ -1094,7 +1097,8 @@
       ],
       "tests": [
         "assert($(\"img\").length > 0, 'message: Your page should have an image element.');",
-        "assert(new RegExp(\"\\/\\/bit.ly\\/fcc-relaxing-cat\", \"gi\").test($(\"img\").attr(\"src\")), 'message: Your image should have a <code>src</code> attribute that points to the kitten image.');"
+        "assert(new RegExp(\"\\/\\/bit.ly\\/fcc-relaxing-cat\", \"gi\").test($(\"img\").attr(\"src\")), 'message: Your image should have a <code>src</code> attribute that points to the kitten image.');",
+        "assert(code.match(/alt\\s*?=\\s*?(\\\"|\\')[\\s\\w\\.\\,\\!]+?(\\\"|\\')/), 'message: Your image element <strong>must</strong> have an <code>alt</code> attribute.');"
       ],
       "type": "waypoint",
       "titleEs": "Añade imágenes a tu sitio web",
@@ -1164,7 +1168,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img src=\"https://bit.ly/fcc-relaxing-cat\">",
+        "<img src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1251,7 +1255,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img class=\"smaller-image\" src=\"https://bit.ly/fcc-relaxing-cat\">",
+        "<img class=\"smaller-image\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1330,7 +1334,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1400,7 +1404,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1485,7 +1489,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1577,7 +1581,7 @@
         "",
         "<a href=\"http://www.freecatphotoapp.com\">cat photos</a>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1662,7 +1666,7 @@
         "",
         "<p>Click here for <a href=\"http://www.freecatphotoapp.com\">cat photos</a>.</p>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1708,7 +1712,7 @@
       "description": [
         "You can make elements into links by nesting them within an <code>a</code> element.",
         "Nest your image within an <code>a</code> element. Here's an example:",
-        "<code>&#60;a href=\"#\"&#62;&#60;img src=\"https://bit.ly/fcc-running-cats\"&#62;&#60;/a&#62;</code>",
+        "<code>&#60;a href=\"#\"&#62;&#60;img src=\"https://bit.ly/fcc-running-cats\" alt=\"Three kittens running towards the camera. \"&#62;&#60;/a&#62;</code>",
         "Remember to use <code>#</code> as your <code>a</code> element's <code>href</code> property in order to turn it into a dead link.",
         "Place the existing image element within an anchor element.",
         "Once you've done this, hover over your image with your cursor. Your cursor's normal pointer should become the link clicking pointer. The photo is now a link."
@@ -1745,7 +1749,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1767,91 +1771,6 @@
       "titleDe": "Verlinke ein Bild",
       "challengeType": 0
     },
-    {
-      "id": "bad87fee1348bd9aedf08818",
-      "descriptionPtBR": [
-        "Os atributos <code>alt</code>, também conhecidos como <code>texto alternativo</code>, serão apresentados caso se por qualquer motivo o navegador não possa mostrar a imagem. Os atributos <code>alt</code> também são importantes para que usuários cegos ou com alguma deficiência visual possam entender o que uma imagem retrata. Além disso, os motores de busca também examinam os atributos <code>alt</code>.",
-        "Em resumo: Todas as imagem devem ter um atributo <code>alt</code>!",
-        "Você pode adicionar um atributo <code>alt</code> já no elemento <code>img</code> assim:",
-        "<code>&#60img src=\"www.your-image-source.com/your-image.jpg\" alt=\"seu texto alternativo\"&#62</code>",
-        "Adicione um atributo <code>alt</code> com o texto <code>A cute orange cat lying on its back</code> para a nossa foto com o gato."
-      ],
-      "namePtBR": "Dê Acessibilidade a uma Imagem com Texto Alternativo",
-      "descriptionDe": [
-        "<code>alt</code> Attribute – auch <code>alt text</code> genannt – werden von Browsern angezeigt, wenn sie ein Bild nicht laden können. Für blinde oder visuell eingeschränkte Menschen sind sie ebenfalls wichtig um zu verstehen, was ein Bild darstellt. Zudem werden diese Texte von Suchmaschinen genutzt.",
-        "Kurz gesagt: Jedes Bild sollte ein <code>alt</code> Attribut beinhalten!",
-        "Du kannst das <code>alt</code> Attribut direkt in das Img Element einfügen:",
-        "<code>&#60img src=\"www.deine-bild-quelle.com/dein-bild.jpg\" alt=\"dein alt Text\"&#62</code>",
-        "Füge zu unserem Katzen-Bild ein <code>alt</code> Attribut mit dem Text \"A cute orange cat lying on its back\" hinzu."
-      ],
-      "titleRU": "Добавьте альтернативный текст к изображению для улучшения доступа",
-      "descriptionRU": [
-        "Атрибуты <code>alt</code>, также известные как <code>alt text</code>, являются тем, что браузеры отобразят, если изображение загрузить не получится. Атрибуты <code>alt</code> важны для незрячих или пользователей с ограниченными возможностями в области зрения для понимания того, что отображает изображение. Также поисковые системы используют атрибуты <code>alt</code>.",
-        "Вкратце, каждое изображение должно иметь атрибут <code>alt</code>!",
-        "Вы можете добавить атрибут <code>alt</code> прямо в элемент <conde>img</code> следующим образом:",
-        "<code>&#60img src=\"www.your-image-source.com/your-image.jpg\" alt=\"ваш альтернативный текст\"&#62</code>",
-        "Добавьте атрибут <code>alt</code> с текстом <code>A cute orange cat lying on its back</code> к нашему фото кота."
-      ],
-      "title": "Add Alt Text to an Image for Accessibility",
-      "description": [
-        "<code>alt</code> attributes, also known as <code>alt text</code>, are what browsers will display if they fail to load the image. <code>alt</code> attributes are also important for blind or visually impaired users to understand what an image portrays. And search engines also look at <code>alt</code> attributes.",
-        "In short, every image should have an <code>alt</code> attribute!",
-        "You can add an <code>alt</code> attribute right in the img element like this:",
-        "<code>&#60img src=\"www.your-image-source.com/your-image.jpg\" alt=\"your alt text\"&#62</code>",
-        "Add an <code>alt</code> attribute with the text <code>A cute orange cat lying on its back</code> to our cat photo."
-      ],
-      "challengeSeed": [
-        "<link href=\"https://fonts.googleapis.com/css?family=Lobster\" rel=\"stylesheet\" type=\"text/css\">",
-        "<style>",
-        "  .red-text {",
-        "    color: red;",
-        "  }",
-        "",
-        "  h2 {",
-        "    font-family: Lobster, Monospace;",
-        "  }",
-        "",
-        "  p {",
-        "    font-size: 16px;",
-        "    font-family: Monospace;",
-        "  }",
-        "",
-        "  .thick-green-border {",
-        "    border-color: green;",
-        "    border-width: 10px;",
-        "    border-style: solid;",
-        "    border-radius: 50%;",
-        "  }",
-        "",
-        "  .smaller-image {",
-        "    width: 100px;",
-        "  }",
-        "</style>",
-        "",
-        "<h2 class=\"red-text\">CatPhotoApp</h2>",
-        "",
-        "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
-        "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
-        "",
-        "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
-        "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
-      ],
-      "tests": [
-        "assert($(\"img\").filter(function(){ return /cat/gi.test(this.alt) }).length > 0, 'message: Your image element should have an <code>alt</code> attribute set to <code>A cute orange cat lying on its back</code>');"
-      ],
-      "type": "waypoint",
-      "titleEs": "Agrega texto alternativo a una imagen para dar Accesibilidad",
-      "descriptionEs": [
-        "Los atributos <code>alt</code> también conocidos como <code>texto alternativo</code>, son lo que se presentarán en caso que el navegador no pueda mostrar la imagen. Los atributos <code>alt</code> también son importantes para los usuarios ciegos o con deficiencia visual para entender lo que una imagen retrata. Los motores de búsqueda también examinan los atributos <code>alt</code>. ",
-        "En resumen, ¡cada imagen debe tener un atributo <code>alt</code>!",
-        "Puedes agregar un atributo <code>alt</code> justo en el elemento <code>img</code> así:",
-        "<code>&#60img src=\"www.fuente-de-tu-imagen.com/tu-imagen.jpg\" alt=\"tu texto alternativo\"&#62</code>",
-        "Añade un atributo <code>alt</code> con el texto <code>A cute orange cat lying on its back</code> a nuestra foto del gato."
-      ],
-      "titleDe": "Füge Alt Text für mehr Barrierefreiheit hinzu",
-      "challengeType": 0
-    },
     {
       "id": "bad87fee1348bd9aedf08827",
       "descriptionPtBR": [
@@ -1924,7 +1843,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -2020,7 +1939,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2121,7 +2040,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2213,7 +2132,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2306,7 +2225,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2399,7 +2318,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2498,7 +2417,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2605,7 +2524,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2719,7 +2638,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2821,7 +2740,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2925,7 +2844,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -3016,7 +2935,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<div>",
         "  <p>Things cats love:</p>",
@@ -3128,7 +3047,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<div class=\"silver-background\">",
         "  <p>Things cats love:</p>",
@@ -3242,7 +3161,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<div class=\"silver-background\">",
         "  <p>Things cats love:</p>",
diff --git a/seed/challenges/01-front-end-development-certification/json-apis-and-ajax.json b/seed/challenges/01-front-end-development-certification/json-apis-and-ajax.json
index bb14209852f..310278e1aaa 100644
--- a/seed/challenges/01-front-end-development-certification/json-apis-and-ajax.json
+++ b/seed/challenges/01-front-end-development-certification/json-apis-and-ajax.json
@@ -289,7 +289,7 @@
         "We've seen from the last two lessons that each object in our JSON array contains an <code>imageLink</code> key with a value that is the URL of a cat's image.",
         "When we're looping through these objects, let's use this <code>imageLink</code> property to display this image in an <code>img</code> element.",
         "Here's the code that does this:",
-        "<code>html += \"&lt;img src = '\" + val.imageLink + \"'&gt;\";</code>"
+        "<code>html += \"&lt;img src = '\" + val.imageLink + \"' \" + \"alt='\" + val.altText + \"'&gt;\";</code>"
       ],
       "challengeSeed": [
         "fccss",
@@ -349,14 +349,14 @@
         "Hemos visto en las dos últimas lecciones que cada objeto en nuestro vector JSON contiene una llave <code>imageLink</code> con un valor que corresponde a la URL de la imagen de un gato.",
         "Cuando estamos recorriendo estos objetos, usemos esta propiedad <code>imageLink</code> para visualizar la imagen en un elemento <code>img</code>.",
         "Aquí está el código que hace esto:",
-        "<code>html += \"&lt;img src = '\" + val.imageLink + \"'&gt;\";</code>"
+        "<code>html += \"&lt;img src = '\" + val.imageLink + \"' \" + \"alt='\" + val.altText + \"'&gt;\";</code>"
       ],
       "titlePt": "Apresentar as imagens da fonte de dados",
       "descriptionPt": [
         "Como temos visto nas ultimas lições, cada objeto em nosso array JSON contém a chave <code>imageLink</code> com um valor que corresponde a URL da imagem de um gato.",
         "Quando estamos percorrendo por estes objetos, usamos a propriedade <code>imageLink</code> para visualizar a imagem em um elemento <code>img</code>.",
         "Aqui está o código para fazer isso:",
-        "<code>html += \"&lt;img src = '\" + val.imageLink + \"'&gt;\";</code>"
+        "<code>html += \"&lt;img src = '\" + val.imageLink + \"' \" + \"alt='\" + val.altText + \"'&gt;\";</code>"
       ]
     },
     {
@@ -387,7 +387,7 @@
         "",
         "          html += \"<div class = 'cat'>\"",
         "",
-        "          html += \"<img src = '\" + val.imageLink + \"'>\"",
+        "          html += \"<img src = '\" + val.imageLink + \"' \" + \"alt='\" + val.altText + \"'>\"",
         "",
         "          html += \"</div>\"",
         "",