Atoday.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
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.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
No space between attributes.
Attribute “;” not allowed on element “a” at this point.
Stray end tag “strong”.
End tag “a” violates nesting rules.
The element “noscript” must not appear as a descendant of the “noscript” element.
No “p” element in scope but a “p” end tag seen.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
End tag “div” seen, but there were open elements.
Unclosed element “aside”.
Stray end tag “aside”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Attribute “;” is not serializable as XML 1.0.
This document is not mappable to XML 1.0 without data loss due to U+000c which is not a legal XML 1.0 character.
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