Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “form” role is unnecessary for element “form”.
Attribute “title"close"” is not serializable as XML 1.0.
Empty heading.
The first occurrence of ID “chkbox-error” was here.
Errors:
Bad value “” for attribute “href” on element “link”: Must be non-empty.
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “” for attribute “name” on element “meta”: Must not be empty.
The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “textbox” for attribute “type” on element “input”.
Attribute “placeholder” is only allowed when the input type is “email”, “number”, “password”, “search”, “tel”, “text”, or “url”.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “clear” attribute on the “br” element is obsolete. Use CSS instead.
Element “li” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “title"close"” not allowed on element “img” at this point.
Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Duplicate ID “chkbox-error”.
Element “style” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Attribute “checked” not allowed on element “input” at this point.
The “for” attribute of the “label” element must refer to a non-hidden form control.
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