Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Element “meta” is missing required attribute “content”.
No “li” element in scope but a “li” end tag seen.
Attribute “alt” not allowed on element “button” at this point.
Bad value “” for attribute “src” on element “source”: Must be non-empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
CSS: Invalid ID selector.
Stray end tag “div”.
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.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “placeholder” not allowed on element “select” at this point.
Stray start tag “div”.
Stray start tag “script”.
The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “type” attribute for the “style” element is not needed and should be omitted.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “charset” attribute on the “script” element is obsolete.
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