Thsh.co.uk W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “ontouchstart” not allowed on element “body” at this point.
Element “notifications” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Element “img” is missing required attribute “src”.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
Element “a” not allowed as child of element “menu” in this context. (Suppressing further errors from this subtree.)
Element “ul” not allowed as child of element “menu” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “menu” in this context. (Suppressing further errors from this subtree.)
Bad value “true” for attribute “allowfullscreen” on element “iframe”.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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