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 3670e9b3e6c..0c74ff27723 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
@@ -4466,7 +4466,7 @@
         "Leave the <code>blue-text</code> and <code>pink-text</code> classes on your <code>h1</code> element.",
         "Create a CSS declaration for your <code>orange-text</code> id in your <code>style</code> element. Here's an example of what this looks like:",
         "<blockquote>#brown-text {<br>&nbsp;&nbsp;color: brown;<br>}</blockquote>",
-        "Note: It doesn't matter whether you declare this css above or below pink-text class, since id attribute will always take precedence."
+        "Note: It doesn't matter whether you declare this CSS above or below pink-text class, since id attribute will always take precedence."
       ],
       "challengeSeed": [
         "<style>",
@@ -4519,7 +4519,7 @@
             "Deja las clases <code>blue-text</code> y <code>pink-text</code> de tu elemento <code>h1</code>.",
             "Crea una declaración CSS para tu identificación <code>orange-text</code> en tu elemento <code>style</code>. He aquí un ejemplo de como se ve esto: ",
             "<blockquote>#brown-text {<br>&nbsp;&nbsp;color: brown;<br>}</blockquote>",
-            "Nota: No importa si usted declara este css encima o debajo de la clase de texto de color rosa, ya atributo id siempre tendrá prioridad."
+            "Nota: No importa si usted declara este CSS encima o debajo de la clase de texto de color rosa, ya atributo id siempre tendrá prioridad."
           ]
         },
         "pt-br": {
diff --git a/seed/challenges/01-front-end-development-certification/jquery.json b/seed/challenges/01-front-end-development-certification/jquery.json
index 6447167e965..ba8f03d3142 100644
--- a/seed/challenges/01-front-end-development-certification/jquery.json
+++ b/seed/challenges/01-front-end-development-certification/jquery.json
@@ -1279,7 +1279,7 @@
       "description": [
         "You've seen why id attributes are so convenient for targeting with jQuery selectors. But you won't always have such neat ids to work with.",
         "Fortunately, jQuery has some other tricks for targeting the right elements.",
-        "jQuery uses CSS Selectors to target elements. <code>target:nth-child(n)</code> css selector allows you to select all the nth elements with the target class or element type.",
+        "jQuery uses CSS Selectors to target elements. The <code>target:nth-child(n)</code> CSS selector allows you to select all the nth elements with the target class or element type.",
         "Here's how you would give the third element in each well the bounce class:",
         "<code>$(\".target:nth-child(3)\").addClass(\"animated bounce\");</code>",
         "Make the second child in each of your well elements bounce. You must target the children of element with the <code>target</code> class."