Erv.se W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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).
The first occurrence of ID “Ages_0_” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Errors:
Bad value “xls,.xlsx” for attribute “accept” on element “input”: Expected a token character or “/” but saw “,” instead.
Duplicate ID “Ages_0_”.
Bad value “tel:0770 456 900” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
The “for” attribute of the “label” element must refer to a non-hidden form control.
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