Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “height” on element “iframe”: Expected a digit but saw “%” instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
The element “button” must not appear as a descendant of the “a” element.
The element “a” must not appear as a descendant of the “button” element.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “https://www.w3.org/2000/svg” for the attribute “xmlns” (only “http://www.w3.org/2000/svg” permitted here).
Stray doctype.
No “p” element in scope but a “p” end tag seen.
Element “h4” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “div”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Attribute “xmlns” is not serializable as XML 1.0.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
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