Blogchina.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
X-UA-Compatible HTTP header must have the value “IE=edge”, was “IE=EmulateIE7”.
Bad value “cn” for attribute “lang” on element “html”: The language subtag “cn” is not a valid ISO language part of a language tag.
Stray doctype.
No space between attributes.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Element “ss” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Attribute “bid” not allowed on element “li” at this point.
Element “dl” is missing a required child element.
Element “ss” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Empty heading.
The “type” attribute is unnecessary for JavaScript resources.
The “charset” attribute on the “script” element is obsolete.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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