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

I don’t understand why the code is wrong

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

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

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

Link to the challenge:

Welcome to our community!
‘html’ element must have the opening and closing tag. Where is you closing tag?

<html lang="en">
</html>