Tmhcc.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “site” not allowed on element “html” at this point.
Bad value “” for attribute “href” on element “link”: Must be non-empty.
The element “a” must not appear as a descendant of the “button” element.
Duplicate ID “Layer_2”.
Duplicate ID “Layer_1-2”.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “Layer_2” was here.
The first occurrence of ID “Layer_1-2” was here.
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