@property --_h {
	syntax: '';
	inherits: true;
	initial-value: 100vh; 
}

@property --_w {
	syntax: '';
	inherits: true;
	initial-value: 100vw; 
}

:root {
	--h: tan(atan2(var(--_h),1px)); /* screen height */
	--w: tan(atan2(var(--_w),1px)); /* screen width */
	/* The result is an integer without unit */
}