Cribis.com W3C HTML Markup Validation
HTML markup errors and warnings
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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”.
Duplicate ID “login-form”.
Duplicate ID “Username”.
Duplicate ID “Password”.
The element “button” must not appear as a descendant of the “a” element.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “login-form” was here.
The first occurrence of ID “Username” was here.
The first occurrence of ID “Password” was here.
Empty heading.
This document appears to be written in Italian but the “html” start tag has “lang="en"”. Consider using “lang="it"” (or variant) instead.
Italy IT