freeCodeCamp/curriculum/structure/superblocks/pseudo-classes-and-elements.json

{
  "blocks": [
    "lecture-working-with-pseudo-classes-and-pseudo-elements-in-css",
    "workshop-greeting-card",
    "workshop-parent-teacher-conference-form",
    "lab-job-application-form",
    "review-css-pseudo-classes",
    "quiz-css-pseudo-classes"
  ]
}