Create a Horizontal Line Using the hr Element (Not Working)

Tell us what’s happening:
It won’t allow me to proceed. I’ve done everything correct.

Your code so far

  h4 {
    text-align: center;
    height: 25px;
  p {
    text-align: justify;
  .links {
    text-align: left;
    color: black;
  .fullCard {
    width: 245px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin: 10px 5px;
    padding: 4px;
  .cardContent {
    padding: 10px;
  .cardText {
    margin-bottom: 30px;
<div class="fullCard">
  <div class="cardContent">
    <div class="cardText">
      <p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
    <div class="cardLinks">
      <a href="" target="_blank" class="links">Larry Page</a><br><br>
      <a href="" target="_blank" class="links">Sergey Brin</a>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36 OPR/55.0.2994.44.

Link to the challenge:

This challenge has a bug.
So skip it and move on.

Your code is perfect, there’s just a bug on the site stopping it from submitting. If you click on “curriculum” at the top of the page you can jump ahead to the next challenge instead. You don’t need to complete every challenge to claim certificates, but if it bothers you try doing it again in a couple of weeks when hopefully it will have been fixed.

Note: there is a “workaround” being shared which lets the challenge submit, but the “workaround” uses invalid HTML so shouldn’t be used. (I consider it a double bug that the correct solution can’t be submitted and one containing invalid HTML can.)