Cleeng.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
CSS: The @charset rule may only occur at the start of the style sheet. Please check that there are no spaces before it..
CSS: “cursor”: “hand” is not a “cursor” value.
CSS: “float”: “center” is not a “float” value.
CSS: In CSS1, a class name could start with a digit (".55ft"), unless it was a dimension (".55in"). In CSS2, such classes are parsed as unknown dimensions (to allow for future additions of new units) To make “24i” a valid class, CSS2 requires the first digit to be escaped: “.\32 4i”.
CSS: Unknown pseudo-element or pseudo-class “:placeholder”
The element “button” must not appear as a descendant of the “a” element.
Element “div” not allowed as child of element “button” 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.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Stray start tag “script”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Warnings:
Attribute “aria-activedescendant” value should either refer to a descendant element, or should be accompanied by attribute “aria-owns”.
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