Healthwriterhub.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “async'” not allowed on element “script” at this point.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
No “p” element in scope but a “p” end tag seen.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
The “align” attribute on the “h3” element is obsolete. Use CSS instead.
No space between attributes.
Attribute “;” not allowed on element “img” at this point.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Attribute “async'” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “;” is not serializable as XML 1.0.
Empty heading.
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