Errors:
Attribute “xmlns:article” not allowed here.
Attribute “xmlns:book” not allowed here.
Attribute “xmlns:product” not allowed here.
Attribute “xmlns:profile” not allowed here.
Attribute “xmlns:video” not allowed here.
Bad value “revision” for attribute “rel” on element “link”: The string “revision” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Duplicate ID “Layer_1”.
The element “main” must not appear as a descendant of the “article” element.
Duplicate ID “article-list”.
Bad value “” for attribute “name” on element “select”: Must not be empty.
Bad value “” for attribute “id” on element “select”: An ID must not be the empty string.
Duplicate ID “”.
The element “footer” must not appear as a descendant of the “footer” element.
Warnings:
Attribute with the local name “xmlns:article” is not serializable as XML 1.0.
Attribute with the local name “xmlns:book” is not serializable as XML 1.0.
Attribute with the local name “xmlns:product” is not serializable as XML 1.0.
Attribute with the local name “xmlns:profile” is not serializable as XML 1.0.
Attribute with the local name “xmlns:video” is not serializable as XML 1.0.
The “banner” role is unnecessary for element “header”.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “Layer_1” was here.
The first occurrence of ID “article-list” was here.
The first occurrence of ID “” was here.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
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