Nsn.fm W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
The “center” element is obsolete. Use CSS instead.
Stray end tag “left”.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Attribute “encoding” not allowed on element “script” at this point.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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