Teamcolorcodes.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://fonts.googleapis.com/css?family=Days+One|Oswald” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Attribute “ezaw” not allowed on element “span” at this point.
Attribute “ezah” not allowed on element “span” at this point.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “null"” not allowed on element “span” at this point.
The “center” element is obsolete. Use CSS instead.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “complementary” role is unnecessary for element “aside”.
Attribute “null"” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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