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

Tell us what’s happening:
Can someone tell me why my code is incorrect? I was sure that this was how you do it and I even checked previous projects which showed the same way but no luck. if anyone can tell me why and what I’ve done wrong, I’d appreciate it.

Your code so far

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

Your browser information:

User Agent is: Mozilla/5.0 (X11; CrOS x86_64 14816.131.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

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

Link to the challenge:

you are missing the </html>