Imgarcade.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
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The “center” element is obsolete.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 “g:plusone” not allowed as child of element “center” in this context. (Suppressing further errors from this subtree.)
Element “center” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Warnings:
Element name “g:plusone” cannot be represented as XML 1.0.
Empty heading.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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