U tag wrap around text ' phd students '

Tell us what’s happening:
am i making any mistake that it won’t let me in? could someone help me

Your code so far


<style>
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;
}
</style>
<div class="fullCard">
<div class="cardContent">
  <div class="cardText">
    <h4>Google</h4>
    <p>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D.students</u> at <strong>Stanford University</strong>.</p>
  </div>
  <div class="cardLinks">
    <a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
    <a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
  </div>
</div>
</div>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.97 Safari/537.36.

Challenge: Use the u Tag to Underline Text

Link to the challenge:

A small typo: no space between “Ph.D.” and “students”

thanks u mate i’ve been stuck with this like half-hour