Pediapress.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “allow” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “#preview-container” for attribute “rel” on element “a”: The string “#preview-container” is not a registered keyword.
Bad value “thumbgroup” for attribute “rel” on element “a”: The string “thumbgroup” is not a registered keyword.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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