Ushistory.org W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Errors:
CSS: Parse Error.
The “longdesc” attribute on the “img” element is obsolete. Use a regular “a” element to link to the description.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “255"” for attribute “width” on element “img”: Expected a digit but saw “"” instead.
Bad value “150"” for attribute “height” on element “img”: Expected a digit but saw “"” instead.
Start tag “a” seen but an element of the same type was already open.
End tag “div” seen, but there were open elements.
Unclosed element “a”.
End tag “a” violates nesting rules.
Cannot recover after last error. Any further errors will be ignored.
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