Vlada.io W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
CSS: “box-shadow”: “''” is not a “box-shadow” value.
Duplicate ID “widget-category-posts-columns”.
Duplicate ID “sidebar”.
The “center” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “widget-category-posts-columns” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “sidebar” was here.
The “contentinfo” role is unnecessary for element “footer”.
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