Tenmarks.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “charset” not allowed on element “meta” at this point.
Bad value “text/html” for attribute “content” on element “meta”: The legacy encoding declaration did not start with “text/html;”.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
An element with “role=menuitem” must be contained in, or owned by, an element with “role=menubar” or “role=menu”.
Duplicate ID “logo”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “alt” not allowed on element “svg” at this point.
Bad value “” for attribute “src” on element “source”: Must be non-empty.
Stray start tag “script”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “logo” was here.
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