Basecone.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “banner” role is unnecessary for element “header”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad value “contentinfo” for attribute “role” on element “section”.
Attribute “alt” not allowed on element “a” at this point.
Bad value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Attribute “rel” not allowed on element “button” at this point.
The “itemprop” attribute was specified, but the element is not a property of any item.
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