Queensland.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “16x16 /” for attribute “sizes” on element “link”.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
The element “header” must not appear as a descendant of the “header” element.
Attribute “title” not allowed on element “svg” at this point.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Bad value “_bl<b>ank” for attribute “target” on element “a”: Reserved keyword “bl<b>ank” used.
Bad value “_</b>lank” for attribute “target” on element “a”: Reserved keyword “</b>lank” used.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The element “button” must not appear as a descendant of the “a” element.
Attribute “href” not allowed on element “button” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “contentinfo” role is unnecessary for element “footer”.
Empty heading.
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