Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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).
Errors:
CSS: “border”: Too many values or values are not recognized.
Attribute “href” not allowed on element “div” at this point.
Attribute “target” not allowed on element “div” at this point.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “script” must not have attribute “async” unless attribute “src” is also specified or unless attribute “type” is specified with value “module”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The element “header” must not appear as a descendant of the “footer” element.
No “p” element in scope but a “p” end tag seen.
No space between attributes.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
Text not allowed in element “iframe” in this context.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
End tag “br”.
Duplicate attribute “class”.
Stray end tag “div”.
United States US