Errors:
Attribute “xmlns:fb” not allowed here.
Attribute “xmlns:og” not allowed here.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.
Attribute “aria-labeledby” not allowed on element “nav” at this point.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Attribute “aria-labeledby” not allowed on element “section” at this point.
Duplicate ID “DropDownMenu_Sponsor”.
Bad value “” for attribute “aria-hidden” on element “span”.
The element “a” must not appear as a descendant of the “button” element.
Attribute “aria-labeledby” not allowed on element “button” at this point.
Element “img” is missing required attribute “src”.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Duplicate attribute “id”.
Duplicate ID “name_author”.
Attribute “method” not allowed on element “input” at this point.
Attribute “action” not allowed on element “input” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “alt” not allowed on element “div” at this point.
The “for” attribute of the “label” element must refer to a non-hidden form control.
The “aria-describedby” attribute must point to an element in the same document.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “navigation” role is unnecessary for element “nav”.
The “region” role is unnecessary for element “section”.
The first occurrence of ID “DropDownMenu_Sponsor” was here.
Empty heading.
The first occurrence of ID “name_author” was here.
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).
United States US