Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Bad value “top” for attribute “role” on element “section”.
Duplicate ID “upload-link”.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “null"” not allowed on element “span” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “ezaw” not allowed on element “span” at this point.
Attribute “ezah” not allowed on element “span” at this point.
Attribute “rel” not allowed on element “img” at this point.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
No space between attributes.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “upload-link” was here.
Attribute “null"” is not serializable as XML 1.0.
Empty heading.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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