Errors:
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Element “li” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “div” at this point.
Attribute “allow” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “content” not allowed on element “time” at this point.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “"pop-newsletter__email"” not allowed on element “div” at this point.
Attribute “"pop-newsletter__name"” not allowed on element “div” at this point.
Attribute “class"pop-newsletter__city"” not allowed on element “div” at this point.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “banner” role is unnecessary for element “header”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “navigation” role is unnecessary for element “nav”.
Attribute “"” is not serializable as XML 1.0.
The “main” role is unnecessary for element “main”.
The “contentinfo” role is unnecessary for element “footer”.
Attribute “"pop-newsletter__email"” is not serializable as XML 1.0.
Attribute “"pop-newsletter__name"” is not serializable as XML 1.0.
Attribute “class"pop-newsletter__city"” is not serializable as XML 1.0.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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