Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “strike” element is obsolete. Use CSS instead.
Duplicate ID “hosting”.
Saw “=” when expecting an attribute name. Probable cause: Attribute name missing.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “=""” not allowed on element “img” at this point.
Duplicate ID “video”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
The element “button” must not appear as a descendant of the “a” element.
Stray end tag “ul”.
The “center” element is obsolete. Use CSS instead.
Element “g:plusone” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Warnings:
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.
The first occurrence of ID “hosting” was here.
Attribute “=""” is not serializable as XML 1.0.
The first occurrence of ID “video” was here.
Element name “g:plusone” cannot be represented as XML 1.0.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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).
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