3839.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.
Bad value “only screen and(max-width: 640px)” for attribute “media” on element “link”: Expected a letter or whitespace but saw “(” instead.
Bad value “1” for attribute “rel” on element “li”: The string “1” is not an absolute URL.
Bad value “4” for attribute “rel” on element “li”: The string “4” is not an absolute URL.
Bad value “3” for attribute “rel” on element “li”: The string “3” is not an absolute URL.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The element “label” must not appear as a descendant of the “a” element.
The “font” element is obsolete. Use CSS instead.
The element “button” must not appear as a descendant of the “a” element.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Attribute “lz_src” not allowed on element “img” at this point.
Element “img” is missing required attribute “src”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in Simplified Chinese. Consider adding “lang="zh-hans"” (or variant) to the “html” start tag.
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