Errors:
Element “title” must not be empty.
Element “path” not allowed as child of element “path” in this context. (Suppressing further errors from this subtree.)
Attribute “x0” not allowed on element “filter” at this point.
Attribute “y0” not allowed on element “filter” at this point.
Attribute “enable-background” not allowed on element “path” at this point.
Duplicate ID “_Group_”.
Duplicate ID “_Group_2”.
Duplicate ID “_Group_3”.
Duplicate ID “_Group_4”.
Duplicate ID “_Path_”.
Duplicate ID “_Path_2”.
Duplicate ID “_Group_5”.
Bad value “” for attribute “src” on element “video”: Must be non-empty.
Attribute “x-webkit-airplay” not allowed on element “video” at this point.
Attribute “webkit-playsinline” not allowed on element “video” at this point.
Element “h3” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Element “h4” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Warnings:
The first occurrence of ID “_Group_” was here.
The first occurrence of ID “_Group_2” was here.
The first occurrence of ID “_Group_3” was here.
The first occurrence of ID “_Group_4” was here.
The first occurrence of ID “_Path_” was here.
The first occurrence of ID “_Path_2” was here.
The first occurrence of ID “_Group_5” was here.
The “banner” role is unnecessary for element “header”.
Empty heading.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
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).
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