Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “input-5” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “input-1” was here.
The first occurrence of ID “input-3” was here.
The first occurrence of ID “input-4” was here.
The first occurrence of ID “callback-2” was here.
The first occurrence of ID “callback-1” was here.
The first occurrence of ID “callback-4” was here.
Errors:
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “input-5”.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “input-1”.
Duplicate ID “input-3”.
Duplicate ID “input-4”.
Duplicate ID “callback-2”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Duplicate ID “callback-1”.
Duplicate ID “callback-4”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Russian Federation RU