Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Bad value “popUp” for attribute “rel” on element “a”: The string “popUp” is not a registered keyword.
Bad value “login-struttura?iframe=true&width=100%&height=220” for attribute “href” on element “a”: Percentage ("%") is not followed by two hexadecimal digits.
Duplicate attribute “id”.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “{” instead.
Duplicate ID “cerca”.
Duplicate ID “searchsubmit”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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).
The first occurrence of ID “cerca” was here.
The first occurrence of ID “searchsubmit” was here.
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