Egpostal.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Attribute “?” not allowed on element “meta” at this point.
CSS: “overflow”: “show” is not a “overflow” value.
Stray end tag “amp-img”.
No “li” element in scope but a “li” end tag seen.
Attribute “alt” not allowed on element “a” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Attribute “?” is not serializable as XML 1.0.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “type” attribute is unnecessary for JavaScript resources.
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