Clearcorrect.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
Element “title” must not be empty.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “/images/Apple-Illustration-v1B.png 220w, /images/Apple-Illustration-v1B@2X.png” for attribute “srcset” on element “img”: No width specified for image “/images/Apple-Illustration-v1B@2X.png”. (Because one or more image candidate strings specify a width (e.g., the string for image “/images/Apple-Illustration-v1B.png”), all image candidate strings must specify a width.)
End tag “section” seen, but there were open elements.
Unclosed element “div”.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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