Ersnet.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Stray end tag “u”.
End tag “div” seen, but there were open elements.
Unclosed element “ul”.
Bad value “main-nav fixed-main-nav” for attribute “id” on element “nav”: An ID must not contain whitespace.
Duplicate ID “”.
Stray end tag “a”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Stray end tag “span”.
End tag “a” violates nesting rules.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
A slash was not immediately followed by “>”.
Bad value “300px;” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “button ” for attribute “type” on element “button”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “” was here.
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