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”.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
Bad value “header” for attribute “role” on element “header”.
Element “optgroup” is missing required attribute “label”.
Attribute “requires-login” not allowed on element “a” at this point.
Attribute “requires-login” not allowed on element “li” at this point.
Attribute “webkitallowfullscreen” not allowed on element “video” at this point.
Attribute “mozallowfullscreen” not allowed on element “video” at this point.
Attribute “allowfullscreen” not allowed on element “video” at this point.
Stray start tag “p”.
Stray end tag “p”.
The first child “option” element of a “select” element with a “required” attribute, and without a “multiple” attribute, and without a “size” attribute whose value is greater than “1”, must have either an empty “value” attribute, or must have no text content. Consider either adding a placeholder option label, or adding a “size” attribute with a value equal to the number of “option” elements.
Start tag “a” seen but an element of the same type was already open.
End tag “a” violates nesting rules.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
The “navigation” role is unnecessary for element “nav”.
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).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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