Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
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.
Element “div” is missing one or more of the following attributes: “role”.
Element “legend” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “header” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Bad value “video/mp4;codecs=” for attribute “type” on element “source”: Parameter value missing.
Attribute “avc1.42e01e,” not allowed on element “source” at this point.
Attribute “mp4a.40.2"” not allowed on element “source” at this point.
Element “style” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “aria-controls” attribute must point to an element in the same document.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “button” role is unnecessary for element “input” whose type is “submit”.
The “main” role is unnecessary for element “main”.
Attribute “avc1.42e01e,” is not serializable as XML 1.0.
Attribute “mp4a.40.2"” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
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