Contentmonster.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
Attribute “size” not allowed on element “input” at this point.
Attribute “maxlength” not allowed on element “input” at this point.
Attribute “maxlength” is only allowed when the input type is “email”, “password”, “search”, “tel”, “text”, or “url”.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Text not allowed in element “ul” in this context.
No “li” element in scope but a “li” end tag seen.
Warnings:
The “navigation” role is unnecessary for element “nav”.
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