Pebblego.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Attribute “value” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Element “title” must not be empty.
Attribute “name” not allowed on element “li” 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.
Bad value “true” for attribute “required” on element “input”.
Stray end tag “div”.
Stray start tag “script”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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