55bbs.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Legacy encoding “gbk” used. Documents must use UTF-8.
Bad value “text/html; charset=gbk” for attribute “content” on element “meta”: “charset=” must be followed by “utf-8”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “center” element is obsolete. Use CSS instead.
Element “dl” is missing a required child element.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “height” on element “img”: Expected a digit but saw “%” instead.
Stray end tag “a”.
Duplicate attribute “target”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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