Allstarlogo.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “300px;"” is not serializable as XML 1.0.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “tel:(888) 475-5646” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Element “style” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Duplicate attribute “class”.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “300px;"” not allowed on element “span” at this point.
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