Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Attribute “display:” is not serializable as XML 1.0.
Attribute “flex;"--” is not serializable as XML 1.0.
The first occurrence of ID “prop_ad32e604e17467fc435538334fbddf3e” was here.
The first occurrence of ID “checkbox1” was here.
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”.
Attribute “href” not allowed on element “button” at this point.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “display:” not allowed on element “div” at this point.
Attribute “flex;"--” not allowed on element “div” at this point.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Bad value “” for attribute “method” on element “form”.
Duplicate attribute “class”.
Duplicate attribute “value”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “prop_ad32e604e17467fc435538334fbddf3e”.
Element “option” without attribute “label” must not be empty.
Duplicate ID “checkbox1”.
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