@property --background-image--strictly-typed {
	syntax: '<url> | none';
	inherits: true;
	initial-value: none;
}

@property --background-image--loosely-typed {
	syntax: '*';
	inherits: true;
	initial-value: none;
}

@property --background-image--strictly-typed-with-initial-value {
	syntax: '<url> | none';
	inherits: true;
	initial-value: url('./green.png#initial');
}

.box {
	--background-image--strictly-typed: url(./green.png#1);
	--background-image--loosely-typed: url(./green.png#2);
	--background-image--untyped: url(./green.png#3);
	--background-image--strictly-typed-with-initial-value: url(./green.png#4);
}
