Iluminet.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
No “li” element in scope but a “li” end tag seen.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “base” not allowed on element “div” at this point.
Attribute “href” not allowed on element “span” at this point.
Attribute “target” not allowed on element “span” at this point.
Attribute “rel” not allowed on element “span” at this point.
Malformed byte sequence: “c2”.
No “p” element in scope but a “p” end tag seen.
Stray end tag “img”.
Attribute “target” not allowed on element “blockquote” at this point.
Element “dl” is missing a required child element.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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