Mail.com.tr W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “(max-device-width: 1024px)
and (min-device-width: 768px)
and (-webkit-min-device-pixel-ratio: 2)” for attribute “media” on element “link”: Expected a CSS media feature but saw “max-device-width” instead.
Attribute “onselectstart” not allowed on element “div” at this point.
Attribute “onselectstart” not allowed on element “input” at this point.
Attribute “prebid_size” not allowed on element “div” at this point.
Attribute “prebid_floor” not allowed on element “div” at this point.
Attribute “dfp_code” not allowed on element “div” at this point.
Attribute “dfp_units” not allowed on element “div” at this point.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
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