Matrix.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “https://matrix.to/#/#matrix:matrix.org” for attribute “href” on element “a”: Illegal character in fragment: “#” is not allowed.
Attribute “mce-data-marked” not allowed on element “span” at this point.
The “font” element is obsolete. Use CSS instead.
Bad value “https://riot.im/app/#/room/#matrix:matrix.org” for attribute “href” on element “a”: Illegal character in fragment: “#” is not allowed.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Warnings:
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).
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
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