Mcmaster.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Attribute “viewbox” not allowed on element “img” at this point.
Bad value “220px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “32px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Attribute “preserveaspectratio” not allowed on element “img” at this point.
Attribute “autocorrect” not allowed on element “input” at this point.
Attribute “autocapitalize” not allowed on element “input” at this point.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “frameborder” attribute on the “iframe” element is obsolete.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The “allowtransparency” attribute on the “iframe” element is obsolete.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The “border” attribute on the “table” element is obsolete. Use CSS instead.
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