Errors:
X-UA-Compatible HTTP header must have the value “IE=edge”, was “IE=Edge,chrome=1”.
Attribute “xmlns:og” not allowed here.
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
End tag “div” seen, but there were open elements.
Unclosed element “button”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “hr” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
The element “button” must not appear as a descendant of the “a” element.
Attribute “type” not allowed on element “iframe” at this point.
Bad value “10000px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “5625px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
The “banner” role is unnecessary for element “header”.
The “main” role is unnecessary for element “main”.
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