Sonnenborgh.nl W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Attribute “data-ui:toggle:class” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Attribute “playsinline"” is not serializable as XML 1.0.
Attribute “data-ui:balance:selector” is not serializable as XML 1.0.
Errors:
“data-*” attribute names must be XML 1.0 4th ed. plus Namespaces NCNames.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
CSS: “background-color”: Parse Error.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “type” not allowed on element “video” at this point.
Attribute “playsinline"” not allowed on element “video” at this point.
Bad value “” for attribute “name” on element “a”: An ID must not be the empty string.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
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