Sekolahpintar.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
This document appears to be written in Indonesian. Consider adding “lang="id"” (or variant) to the “html” start tag.
Errors:
End tag “nav” seen, but there were open elements.
Unclosed element “ul”.
The element “button” must not appear as a descendant of the “a” element.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate attribute “style”.
CSS: “border”: “light-grey” is not a “color” value.
Bad value “100px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
The “center” element is obsolete. Use CSS instead.
Bad value “70px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Indonesia ID