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”.
Element “style” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
The element “button” must not appear as a descendant of the “a” element.
Duplicate attribute “target”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “content_tab_0”.
Duplicate ID “content_tab_1”.
Stray end tag “tr”.
Duplicate ID “content_tab_3”.
Element “dd” not allowed as child of element “li” in this context. (Suppressing further errors from this subtree.)
Warnings:
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).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “content_tab_0” was here.
The first occurrence of ID “content_tab_1” was here.
The first occurrence of ID “content_tab_3” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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