Unesa.ac.id W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “a” at this point.
Element “form” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “brr” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “content”.
Duplicate ID “sidebar”.
End tag “div” seen, but there were open elements.
Unclosed element “brr”.
Unclosed element “address”.
Bad value “0.1em” for attribute “width” on element “img”: Expected a digit but saw “.” instead.
Bad value “0.1em” for attribute “height” on element “img”: Expected a digit but saw “.” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Attribute “"” is not serializable as XML 1.0.
Element name “gcse:search” cannot be represented as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “content” was here.
The first occurrence of ID “sidebar” was here.
This document appears to be written in Indonesian but the “html” start tag has “lang="en"”. Consider using “lang="id"” (or variant) instead.
Indonesia ID