Learn CSS Colors by Building a Set of Colored Markers - Step 1

So, I’ve been having some problems with self-closing tabs on the freecodecamp courses. Previously, its been an issue with self closing tags where I keep getting an error message about the tag needing to “have a self closing tag.”
I seemed to fix that issue by switching browsers. Google Chrome to Firefox… But I’m still not able to get past this issue with a self closing tag. The error I’m getting is " Your html element should have a closing tag."
So, is this a bug? Am I just missing something?

<!DOCTYPE html>
<html lang="en">

Your browser information:

User Agent is: Mozilla/5.0 (X11; Linux x86_64; rv:103.0) Gecko/20100101 Firefox/103.0

Challenge: Learn CSS Colors by Building a Set of Colored Markers - Step 1

Link to the challenge:

Hi @heydude ,

Yes, you are missing the closing tag of the html element.
html is not a self-closing tag.