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.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
No space between attributes.
“<” in attribute name. Probable cause: “>” missing immediately before.
A slash was not immediately followed by “>”.
Attribute “our” not allowed on element “h4” at this point.
Attribute “gift” not allowed on element “h4” at this point.
Attribute “to” not allowed on element “h4” at this point.
Attribute “you...<” not allowed on element “h4” at this point.
Attribute “h4” not allowed on element “h4” at this point.
Heading cannot be a child of another heading.
Stray end tag “h4”.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “longdesc” attribute on the “iframe” element is obsolete. Use a regular “a” element to link to the description.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “align” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Attribute “you...<” is not serializable as XML 1.0.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
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