Errors:
A document must not include more than one “meta” element with a “charset” attribute.
Element “title” must not be empty.
Attribute “aria-role” not allowed on element “div” at this point.
Stray end tag “div”.
End tag “header” seen, but there were open elements.
Unclosed element “nav”.
Element “style” not allowed as child of element “main” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “img”.
Stray end tag “a”.
Duplicate ID “demo2”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The element “button” must not appear as a descendant of the “a” element.
End tag “main” seen, but there were open elements.
Unclosed element “div”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Attribute “allow” not allowed on element “iframe” at this point.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “aria-role” not allowed on element “footer” at this point.
Stray end tag “form”.
Warnings:
The “main” role is unnecessary for element “main”.
The first occurrence of ID “demo2” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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