Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Attribute “<” is not serializable as XML 1.0.
The first occurrence of ID “videocontainer” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Stray end tag “span”.
End tag “h2” seen, but there were open elements.
Unclosed element “span”.
Bad value “” for attribute “poster” on element “video”: Must be non-empty.
No space between attributes.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
A slash was not immediately followed by “>”.
Attribute “<” not allowed on element “source” at this point.
Attribute “video” not allowed on element “source” at this point.
End tag “div” seen, but there were open elements.
Unclosed element “video”.
Duplicate ID “videocontainer”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “contentinfo” for attribute “role” on element “section”.
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