Davuniversity.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “screen, projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.
Element “input” is missing required attribute “alt”.
Bad value “240px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “100px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “248px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “245px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “165px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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