Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
Bad value “auto” for attribute “height” on element “video”: Expected a digit but saw “a” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “p” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
Element “img” is missing required attribute “src”.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Attribute “gesture” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
End tag “p” implied, but there were open elements.
Unclosed element “strong”.
End tag “p” seen, but there were open elements.
No “strong” element in scope but a “strong” end tag seen.
No “p” element in scope but a “p” end tag seen.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
Attribute “tab-index” not allowed on element “div” at this point.
Attribute “tab-index” not allowed on element “a” at this point.
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