Craigslistjoe.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “id” attribute on a “map” element must have an the same value as the “name” attribute.
Bad value “shadowbox;width=852;height=480” for attribute “rel” on element “a”: The string “shadowbox;width=852;height=480” is not a registered keyword.
Bad value “_new” for attribute “target” on element “a”: Reserved keyword “new” used.
Attribute “alt” not allowed on element “a” at this point.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “contentinfo” role is unnecessary for element “footer”.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
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