Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bogus comment.
Bad value “” for attribute “id” on element “button”: An ID must not be the empty string.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “area” is missing required attribute “alt”.
Bad value “387,26,409,40” for attribute “coords” on element “area”: A polyline must have at least six comma-separated integers.
Bad value “363,30,385,46” for attribute “coords” on element “area”: A polyline must have at least six comma-separated integers.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
The “align” attribute on the “h1” element is obsolete. Use CSS instead.
The “align” attribute on the “h2” element is obsolete. Use CSS instead.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The document is not mappable to XML 1.0 due to a trailing hyphen in a comment.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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