@import 'common.scss'; #glow { #ai, #user { width: 100%; height: 100%; position: absolute; top: 0px; left: 0px; transition: opacity 1.2s; &.visible { opacity: 0.3; } } $glowReach : 60%; #ai { opacity: 0; background-image: radial-gradient(ellipse farthest-corner at 50% 0px, $orange 0%, black $glowReach); } #user { opacity: 0; background-image: radial-gradient(ellipse farthest-corner at 50% 0px, $blue 0%, black $glowReach); } }