Problème box-shadow id thumbnail

Tell us what’s happening:

Je suis bloqué à la question sur le test box-shadow avec l’id thumbnail
Je sais pas quoi mettre d’autre pour valider le test.
#thumbnail {
box-shadow: 5px 10px 15px black;

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;

#thumbnail {
box-shadow: 5px 10px 15px 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>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134.

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

Link to the challenge:

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

J’ai déja essayé mais ça ne marche pas

Did you copy exactly the box-shadow that they provided in the example? I did it and it worked for me.
Do you get a message for why the test didn’t pass?

J’ai compris, le code ne marche pas sur Edge mais ok sur Google Chrome.