Stoptech.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Attribute “xmlns:og” not allowed here.
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”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “topnav”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The first occurrence of ID “topnav” was here.
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