Ub.life W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “search” was here.
This document appears to be written in Mongolian but the “html” start tag has “lang="en"”. Consider using “lang="mn"” (or variant) instead.
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”.
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate attribute “id”.
Duplicate ID “search”.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Attribute “controlslist” not allowed on element “video” at this point.
Mongolia MN