Humongous.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “http://humongous.com/game?category=HE Publishing” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “headerBanner”.
No “p” element in scope but a “p” end tag seen.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
Empty heading.
The first occurrence of ID “headerBanner” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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