Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “id” on element “li”: An ID must not be the empty string.
Duplicate ID “”.
Attribute “type” not allowed on element “div” at this point.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
Attribute “<!--href” not allowed on element “div” at this point.
No “li” element in scope but a “li” end tag seen.
Bad value “600px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “320px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “” for attribute “name” on element “textarea”: Must not be empty.
Bad value “” for attribute “id” on element “textarea”: An ID must not be the empty string.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “” was here.
Attribute “<!--href” is not serializable as XML 1.0.
The “form” role is unnecessary for element “form”.
Empty heading.
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