:where(.semantic){--3x-low-opacity:0.1;--2x-low-opacity:0.25;--x-low-opacity:0.33;--low-opacity:0.4;--medium-opacity:0.5;--high-opacity:0.66;--x-high-opacity:0.75;--2x-high-opacity:0.8;--3x-high-opacity:0.9}