Workbuster.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.
Bad value “100%” for attribute “width” on element “video”: Expected a digit but saw “%” instead.
Bad value “auto” for attribute “height” on element “video”: Expected a digit but saw “a” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “panel-0”.
Duplicate ID “panel-1”.
Duplicate ID “panel-2”.
Bad value “” for attribute “poster” on element “video”: Must be non-empty.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “tel:08-580 807 30” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Bad value “” for attribute “aria-labelledby” on element “div”: An IDREFS value must contain at least one non-whitespace character.
Text not allowed in element “iframe” in this context.
The “aria-controls” attribute must point to an element in the same document.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Empty heading.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “panel-0” was here.
The first occurrence of ID “panel-1” was here.
The first occurrence of ID “panel-2” was here.
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