Booksandculture.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “content-style-type” for attribute “http-equiv” on element “meta”.
Stray end tag “link”.
Attribute “value” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “alt” not allowed on element “input” at this point.
Duplicate ID “body”.
Duplicate ID “rightnav_ad”.
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
Attribute “value” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The first occurrence of ID “body” was here.
The first occurrence of ID “rightnav_ad” was here.
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