Douguo.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Attribute “val” not allowed on element “input” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The only allowed value for the “charset” attribute for the “script” element is “utf-8”. (But the attribute is not needed and should be omitted altogether.)
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “charset” attribute on the “script” element is obsolete.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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