Waronline.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:fb” not allowed here.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Bad value “up” for attribute “rel” on element “a”: The string “up” is not a registered keyword.
The “center” element is obsolete. Use CSS instead.
Attribute “border” not allowed on element “input” at this point.
Bad value “Menu” for attribute “rel” on element “a”: The string “Menu” is not a registered keyword.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “date” input type is not supported in all browsers. Please be sure to test, and consider using a polyfill.
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