Whereis.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “value” not allowed on element “td” at this point.
Duplicate ID “searchBox”.
Duplicate ID “searchButton”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Attribute “label” not allowed on element “a” at this point.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “searchBox” was here.
The first occurrence of ID “searchButton” was here.
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