Skincancer.org W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “q” was here.
The first occurrence of ID “content” was here.
The first occurrence of ID “site-intro” was here.
The “contentinfo” role is unnecessary for element “footer”.
Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “q”.
Duplicate ID “content”.
Duplicate ID “site-intro”.
The element “input” must not appear as a descendant of the “a” element.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
Stray start tag “script”.
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