Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “aside” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Attribute “border” not allowed on element “iframe” at this point.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
Attribute “<img” not allowed on element “i” at this point.
Attribute “src” not allowed on element “i” at this point.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
End tag “div” seen, but there were open elements.
Unclosed element “i”.
Element “div” not allowed as child of element “i” in this context. (Suppressing further errors from this subtree.)
Element “section” not allowed as child of element “i” in this context. (Suppressing further errors from this subtree.)
End tag “p” seen, but there were open elements.
Attribute “placeholder” is only allowed when the input type is “email”, “number”, “password”, “search”, “tel”, “text”, or “url”.
End tag for “body” seen, but there were unclosed elements.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “complementary” role is unnecessary for element “aside”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Attribute “<img” is not serializable as XML 1.0.
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