open-props/css/font/weight.css

<div align="center">

:where(:root) {
	--font-weight-1: 100;
	--font-weight-2: 200;
	--font-weight-3: 300;
	--font-weight-4: 400;
	--font-weight-5: 500;
	--font-weight-6: 600;
	--font-weight-7: 700;
	--font-weight-8: 800;
	--font-weight-9: 900;
}