Not sure what's wrong : Decreasing the opacity

Hello everyone! Doing the CSS challenge but am stuck in Decrease the Opacity of an Element. Keep getting the response " Your code should set the opacity property to 0.7 on the anchor tags by selecting the class of links" But haven’t added it already?

Thanks for any help!

  **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: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(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;
<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 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.3 Safari/605.1.15

Challenge: Decrease the Opacity of an Element

Link to the challenge:

When I test your code it passes all tests.

  • Do you have any browser extensions that change the appearance of websites (like a “dark mode” extension)?
  • Do you have any browser extensions that can block scripts from running (like an AdBlock)?
  • Are you using an up-to-date version of Chrome, Firefox, Safari, or Edge?

Thanks. Problem solved after I use Chrome instead. Passed the challenge with the same code. Seems there is a issue with Safari. I had it updated but it still doesn’t work.

If you don’t have any extensions or extra privacy settings in Safari, it could be a bug. Bugs can be reported as GitHub Issues. Whenever reporting a bug, please check first that there isn’t already an issue for it and provide as much detail as possible.

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