Errors:
Bad value “http://www.w3.org/1999/html” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “";"” not allowed on element “div” at this point.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “dl” is missing a required child element.
Element “img” is missing required attribute “src”.
Duplicate ID “checkbox_dd”.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Duplicate ID “div_auto”.
Bad value “” for attribute “name” on element “input”: Must not be empty.
No “dd” element in scope but a “dd” end tag seen.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
Empty heading.
Attribute “";"” is not serializable as XML 1.0.
The first occurrence of ID “checkbox_dd” was here.
The first occurrence of ID “div_auto” was here.
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