Rittenhousehotel.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
CSS: “font-smoothing”: Property “font-smoothing” doesn't exist.
Element “img” is missing required attribute “src”.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
Attribute “async” not allowed on element “link” at this point.
Attribute “defer” not allowed on element “link” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
The “type” attribute is unnecessary for JavaScript resources.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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