Jitpack.io W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “navigation” role is unnecessary for element “nav”.
A table row was 2 columns wide, which is less than the column count established by the first row (5).
Empty heading.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
Attribute “alt” not allowed on element “input” at this point.
Duplicate attribute “role”.
Bad value “presentation” for attribute “role” on element “a”.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “160px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “30px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “itemprop” attribute was specified, but the element is not a property of any item.
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