.ellipse{--height:300px;--gradient-stop:82.2%;top:90%;position:absolute;height:var(--height);left:50%;transform:translateX(-50%);aspect-ratio:2.3468208092/1;border-radius:100%;background:radial-gradient(51.38% 51.38% at 50% 50%,#0b0d0f var(--gradient-stop),var(--gradient-color) 100%);opacity:0}@media (min-width:768px){.ellipse{--height:2400px;--gradient-stop:94%;top:90%}}@media (min-width:1920px){.ellipse{--height:3500px;--gradient-stop:92%;top:80%}}