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.
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 “(device-width: 768px) and (device-height: 1024px)
and (orientation: portrait)
and (-webkit-device-pixel-ratio: 2)” for attribute “media” on element “link”: Expected a CSS media feature but saw “device-width” instead.
Bad value “(device-width: 768px) and (device-height: 1024px)
and (orientation: landscape)
and (-webkit-device-pixel-ratio: 2)” for attribute “media” on element “link”: Expected a CSS media feature but saw “device-width” instead.
Bad value “(device-width: 768px) and (device-height: 1024px)
and (orientation: portrait)
and (-webkit-device-pixel-ratio: 1)” for attribute “media” on element “link”: Expected a CSS media feature but saw “device-width” instead.
Bad value “(device-width: 768px) and (device-height: 1024px)
and (orientation: landscape)
and (-webkit-device-pixel-ratio: 1)” for attribute “media” on element “link”: Expected a CSS media feature but saw “device-width” instead.
Bad value “(device-width: 320px) and (device-height: 568px)
and (-webkit-device-pixel-ratio: 2)” for attribute “media” on element “link”: Expected a CSS media feature but saw “device-width” instead.
Bad value “(device-width: 320px) and (device-height: 480px)
and (-webkit-device-pixel-ratio: 2)” for attribute “media” on element “link”: Expected a CSS media feature but saw “device-width” instead.
Bad value “(device-width: 320px) and (device-height: 480px)
and (-webkit-device-pixel-ratio: 1)” for attribute “media” on element “link”: Expected a CSS media feature but saw “device-width” instead.
Bad value “original-source” for attribute “rel” on element “link”: The string “original-source” is not a registered keyword.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “a” violates nesting rules.
Stray end tag “a”.
The element “footer” must not appear as a descendant of the “footer” element.
The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The “contentinfo” role is unnecessary for element “footer”.
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