Errors:
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 “” for attribute “id” on element “section”: An ID must not be the empty string.
Duplicate ID “”.
Duplicate attribute “class”.
Bad value “” for attribute “name” on element “form”: Must not be empty.
Element “style” not allowed as child of element “form” in this context. (Suppressing further errors from this subtree.)
Element “option” without attribute “label” must not be empty.
No space between attributes.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “class'thumbnail'” not allowed on element “a” at this point.
No “p” element in scope but a “p” end tag seen.
Attribute “height” not allowed on element “a” at this point.
Attribute “width” not allowed on element “a” at this point.
Stray end tag “td”.
Bad value “tooltip” for attribute “rel” on element “a”: The string “tooltip” is not a registered keyword.
End tag “li” seen, but there were open elements.
Unclosed element “div”.
The “center” element is obsolete. Use CSS instead.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “class'thumbnail'” is not serializable as XML 1.0.
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