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

Can someone please tell me what i’m doing wrong?

Your code so far


<!-- User Editable Region -->

<DOCTYPE lang="en"></DOCTYPE>


<!-- User Editable Region -->

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

Link to the challenge:

that is not how you write a doctype declaration.
Refer to the marker project code if you need to recall how to do it correctly.