Longse.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
No space between attributes.
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.
Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.
Bad value “” for attribute “cols” on element “textarea”: The empty string is not a valid positive integer.
Bad value “” for attribute “rows” on element “textarea”: The empty string is not a valid positive integer.
Element “p” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “button” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray start tag “script”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
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