Grin.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “only screen and (max-device-width: 640px)” for attribute “media” on element “link”: Deprecated media feature “max-device-width”. For guidance, see the Deprecated Media Features section in the current Media Queries specification.
Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Stray end tag “input”.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “”.
No space between attributes.
Attribute “;” not allowed on element “img” at this point.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “center” element is obsolete. Use CSS instead.
Warnings:
The “border” attribute is obsolete.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.
The first occurrence of ID “” was here.
Attribute “;” is not serializable as XML 1.0.
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