Umbro.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”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Duplicate attribute “id”.
Bad value “” for attribute “name” on element “input”: Must not be empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “img”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate attribute “class”.
Attribute “value” not allowed on element “span” at this point.
The element “header” must not appear as a descendant of the “footer” element.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
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