Errors:
A document must not include more than one “meta” element with a “charset” attribute.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No “p” element in scope but a “p” end tag seen.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The element “button” must not appear as a descendant of the “a” element.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
Attribute “<!--class” not allowed on element “div” at this point.
Attribute “alt” not allowed on element “a” at this point.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “green"” not allowed on element “a” at this point.
Attribute “device” not allowed on element “a” at this point.
Attribute “generates” not allowed on element “a” at this point.
Attribute “electricity” not allowed on element “a” at this point.
Attribute “from” not allowed on element “a” at this point.
Attribute “motion"” not allowed on element “a” at this point.
Bad value “_km” for attribute “target” on element “a”: Reserved keyword “km” used.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
End tag “section” seen, but there were open elements.
Unclosed element “div”.
Bad value “_tv” for attribute “target” on element “a”: Reserved keyword “tv” used.
Bad value “username” for attribute “type” on element “input”.
Attribute “placeholder” is only allowed when the input type is “email”, “number”, “password”, “search”, “tel”, “text”, or “url”.
The “aria-describedby” attribute must point to an element in the same document.
Warnings:
Empty heading.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “<!--class” is not serializable as XML 1.0.
Attribute “green"” is not serializable as XML 1.0.
Attribute “motion"” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
United States US