Anything wrong with this topic CSS with right answer

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

   **Your code so far**

h1 {
  font-size: 68px;
h2 {
  font-size: 52px;
h3 {
  font-size: 40px;
h4 {
  font-size: 32px;
h5 {
  font-size: 21px;
h6 {
  font-size: 14px;
<h1>This is h1 text</h1>
<h2>This is h2 text</h2>
<h3>This is h3 text</h3>
<h4>This is h4 text</h4>
<h5>This is h5 text</h5>
<h6>This is h6 text</h6>
   **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36

Challenge: Set the font-size for Multiple Heading Elements

Link to the challenge:

Code is clean from errors

  • Try to clear the browser cache or used another browser.

Please view the image and see that I can’t pass this exam with those code

HI @dattran306 !

Welcome to the forum!

This issue comes up all of the time.

Make sure to run the tests with an up to date browser without extensions.
I am using google chrome without extensions and the test passes for me.

Please ensure that you have disabled any extensions that interface with the freeCodeCamp website (such as Dark Mode and Ad Blocker), and set your browser zoom level to 100%. Both of these factors can cause tests to fail erroneously.

(post deleted by author)

Wow, that’s worked effectively after removing Ad blocker, thank you for your instruction, Ms. Jwilkins Oboe

Best regards,