Monsido.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “” for attribute “href” on element “link”: Must be non-empty.
Bad value “tel:+1 858-281-2185” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Bad value “tel:+61 2 9051 0590” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Warnings:
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
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).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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