Provokr.com 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 “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “imageCredit” was here.
The value of attribute “data-original” on element “img” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
The “complementary” role is unnecessary for element “aside”.
The “contentinfo” role is unnecessary for element “footer”.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “ontouchstart” not allowed on element “body” at this point.
Bad value “550px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “80px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Element “img” is missing required attribute “src”.
Duplicate ID “imageCredit”.
Element “li” not allowed as child of element “nav” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
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