Leewayhertz.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute for the “style” element is not needed and should be omitted.
Consider avoiding viewport values that prevent users from resizing documents.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “type” attribute is unnecessary for JavaScript resources.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Errors:
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
CSS: Parse Error.
Attribute “custom-element” not allowed on element “script” at this point.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Stray end tag “div”.
Attribute “defer” not allowed on element “noscript” at this point.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
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