Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Attribute “'” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “:perspective” is not serializable as XML 1.0.
Attribute “:space” is not serializable as XML 1.0.
Attribute “:display” is not serializable as XML 1.0.
Attribute “:height” is not serializable as XML 1.0.
Attribute “:width” is not serializable as XML 1.0.
Attribute “:autoplay” is not serializable as XML 1.0.
Attribute “:controls-visible” is not serializable as XML 1.0.
Attribute “:controls-prev-html” is not serializable as XML 1.0.
Attribute “:controls-next-html” is not serializable as XML 1.0.
Attribute “:controls-width” is not serializable as XML 1.0.
Attribute “:controls-height” is not serializable as XML 1.0.
Attribute “:index” is not serializable as XML 1.0.
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 “X-UA-TextLayoutMetrics” for attribute “http-equiv” on element “meta”.
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “production-styles” for attribute “role” on element “link”.
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “'” not allowed on element “script” at this point.
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.
No “p” element in scope but a “p” end tag seen.
Element “slide” not allowed as child of element “carousel-3d” in this context. (Suppressing further errors from this subtree.)
Attribute “type” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “https://#” for attribute “href” on element “a”: Invalid host: empty host.
Bad value “http://#” for attribute “href” on element “a”: Invalid host: empty host.
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