Startupgrind.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “involved-menu” was here.
The first occurrence of ID “react-read-more-sidebar-root” was here.
The first occurrence of ID “join-community” was here.
Errors:
Duplicate attribute “class”.
Bad value “button” for attribute “type” on element “a”: Subtype missing.
Duplicate ID “involved-menu”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “react-read-more-sidebar-root”.
Duplicate ID “join-community”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “aria-labelledby” attribute must point to an element in the same document.
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