Ign.com 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.
CSS: “max-width”: Too many values or values are not recognized.
CSS: “max-height”: Too many values or values are not recognized.
CSS: Parse Error.
CSS: “border-bottom”: “undefined” is not a “color” value.
CSS: “border-top”: “undefined” is not a “color” value.
CSS: “background-image”: “undefined” is not a “background-image” value.
CSS: “background-color”: “undefined” is not a “background-color” value.
Element “section” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
The element “button” must not appear as a descendant of the “a” element.
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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