Seems like a computer error

[columbuschidozie1]

please what is wrong with my code?? i seem to have done the needful yet i am not passing the challenge

  **Your code so far**

<style>
h4 {
  text-align: center;
  background-color: rgba(45, 45, 45, 0.1);
  padding: 10px;
  font-size: 27px;
}
p {
  text-align: justify;
}
.links {
  text-align: left;
  color: black;
}

#thumbnail {
box-shadow: 0 10px 20px rgb(0,0,0,0.19) 0 6px 6px rgb(0,0,0,0.23);
}
.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" id="thumbnail">
<div class="cardContent">
  <div class="cardText">
    <h4>Alphabet</h4>
    <hr>
    <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>
  <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 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36 Edg/92.0.902.62

Challenge: Add a box-shadow to a Card-like Element

Link to the challenge:

freeCodeCamp.org

[bbsmooth]

You don’t quite have the box-shadow property set correctly. The easiest way to do this is to copy/paste from the instructions, but if you aren’t able to do that then you just need to read carefully to make sure you have everything exactly as it needs to be.

Hint 1: There is a difference between rgb and rgba.
Hint 2: Commas are used to separate multiple shadows.