Etb.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Bad value “1” for attribute “rel” on element “a”: The string “1” is not a registered keyword.
Bad value “3” for attribute “rel” on element “a”: The string “3” is not a registered keyword.
Bad value “2” for attribute “rel” on element “a”: The string “2” is not a registered keyword.
Bad value “4” for attribute “rel” on element “a”: The string “4” is not a registered keyword.
Bad value “5” for attribute “rel” on element “a”: The string “5” is not a registered keyword.
Attribute “rel” not allowed on element “li” at this point.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Warnings:
Empty heading.
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.
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