Excelmacromastery.com 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 “https://lh3.googleusercontent.com/4P1N35psH2TclPzyYO4Eaeltf4Y_Z8OdP11LXFMicqQgQ2Mz-C9WjiOPRXshbq-
iRuARYdMbTtHQU0JlF9Nw3g=s0” for attribute “src” on element “img”: Tab, new line or carriage return found.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “data-” not allowed on element “script” at this point.
Attribute “url” not allowed on element “script” at this point.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
No “p” element in scope but a “p” end tag seen.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Empty heading.
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).
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