Add a box-shadow to a Card-like Element - class?

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**
  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;

  .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" id="thumbnail">
  <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>

Here’s an example of the CSS to create multiple shadows with some blur, at mostly-transparent black colors:

box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);

The element now has an id of thumbnail. With this selector, use the example CSS values above to place abox-shadow on the card.

My question is why we couldn’t put this information in the class .fullcard

  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.106 Safari/537.36

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

Link to the challenge:


There’s not a rule that forbids you to do so, but in this case the challenge was designed like that, I suppose, to make emphasis on what’s asked and simplify the problem for the student.

That said, for a real project (not homework) you may end up applying something like SMACSS or BEM, which aim for better code re-usability and separation of concerns, in which case you would be following some rules to write your code.

Hope it helps :slight_smile:

1 Like

As said, it’s just the way the challenge was designed.

In reality, you would almost certainly never use an id just to apply a box-shadow to an element. In fact, I would suggest you don’t use ids for CSS at all. If it was a class the box-shadow would be reusable (and should be named something better).


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