Nihilist.li W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “a483fc972bd817d838a00177-” for attribute “type” on element “script”: Subtype missing.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Start tag “a” seen but an element of the same type was already open.
Stray end tag “a”.
No “p” element in scope but a “p” end tag seen.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “px"” not allowed on element “img” at this point.
Duplicate attribute “px"”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Attribute “px"” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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