Errors:
A “link” element with an “as” attribute must have a “rel” attribute that contains the value “preload”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
End tag “nav” seen, but there were open elements.
Unclosed element “div”.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “auto” for attribute “height” on element “iframe”: Expected a digit but saw “a” instead.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
No space between attributes.
Bad value “170px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “210px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The element “button” must not appear as a descendant of the “a” element.
End tag “h3” seen, but there were open elements.
Attribute “loading” not allowed on element “img” at this point.
Stray end tag “strong”.
End tag “a” violates nesting rules.
No “i” element in scope but a “i” end tag seen.
Stray end tag “a”.
Warnings:
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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