Universitego.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “wpfc-data-original-src” not allowed on element “img” at this point.
Attribute “wpfc-data-original-srcset” not allowed on element “img” at this point.
The “sizes” attribute may be specified only if the “srcset” attribute is also present.
The element “button” must not appear as a descendant of the “a” element.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “col” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
The “height” attribute on the “td” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “div” seen, but there were open elements.
Unclosed element “ul”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Empty heading.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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