Xfce-look.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
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.
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
A numeric character reference expanded to the C1 controls range.
Bad value “http://www.w3.org/1999/html” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Bad value “130px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “explore-sidebar ” for attribute “id” on element “aside”: An ID must not contain whitespace.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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