Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “footer” was here.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Errors:
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “type” not allowed on element “menu” at this point.
Attribute “alt” not allowed on element “a” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “height” not allowed on element “div” at this point.
Element “style” not allowed as child of element “footer” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “footer”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
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