Saalbach.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Duplicate ID “q”.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
An element with “role=tab” must be contained in, or owned by, an element with “role=tablist”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The element “button” must not appear as a descendant of the “a” element.
End tag “a” violates nesting rules.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “textbox” role is unnecessary for an “input” element that has no “list” attribute and whose type is “text”.
The first occurrence of ID “q” was here.
Empty heading.
The “main” role is unnecessary for element “main”.
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