Serenoregis.org W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “daynum-1” was here.
The first occurrence of ID “daynum-2” was here.
The first occurrence of ID “daynum-3” was here.
The first occurrence of ID “daynum-4” was here.
Errors:
CSS: “line-height”: “falsepx” is not a “line-height” value.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “thead” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “daynum-1”.
Duplicate ID “daynum-2”.
Duplicate ID “daynum-3”.
Duplicate ID “daynum-4”.
The “aria-controls” attribute must point to an element in the same document.
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