Ut.edu W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Element name “gcse:searchbox-only” cannot be represented as XML 1.0.
The first occurrence of ID “content-start” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Duplicate ID “content-start”.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
An element with “role=tab” must be contained in, or owned by, an element with “role=tablist”.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “aria-owns” attribute must point to an element in the same document.
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