Linkt.com.au W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Element “link” is missing required attribute “href”.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Bad value “header search” for attribute “id” on element “input”: An ID must not contain whitespace.
Attribute “href” not allowed on element “button” 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.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Element “hr” does not need a “role” attribute.
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