Problem with with font size code

Hello evertone,
I don’t understand why it doesn’t work. It tells me the code for the H6 font size is wrong. What did I do wrong ?

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 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1 Safari/605.1.15.

Challenge: Set the font-size for Multiple Heading Elements

Link to the challenge:

Check your browser settings. Browsers have a minimum font size setting and anything smaller than that will be changed to a larger size. So far I’ve only seen this problem with Chrome on Apple devices, but it could happen elsewhere too.

Okaay ! Thank you. Indeed, it didn’t work with Safari but worked with Chrome.
Many thanks,