.circles{position:fixed;top:0;left:0;width:100%;height:100%;overflow:hidden;z-index:0}.circles li{position:absolute;display:block;list-style:none;width:20px;height:20px;background:#e2e8f0b3;animation:animate 25s linear infinite;bottom:-150px;border-radius:.5rem}.dark .circles li{background:#33415580}@keyframes animate{0%{transform:translateY(0);opacity:1}to{transform:translateY(-110vh);opacity:0}}.circles li:nth-child(1){left:25%;width:80px;height:80px;animation-delay:0s}.circles li:nth-child(2){left:10%;width:20px;height:20px;animation-delay:2s;animation-duration:12s}.circles li:nth-child(3){left:70%;width:20px;height:20px;animation-delay:4s}.circles li:nth-child(4){left:40%;width:60px;height:60px;animation-delay:0s;animation-duration:18s}.circles li:nth-child(5){left:65%;width:20px;height:20px;animation-delay:0s;animation-duration:22s}.circles li:nth-child(6){left:75%;width:110px;height:110px;animation-delay:3s}.circles li:nth-child(7){left:35%;width:150px;height:150px;animation-delay:7s}.circles li:nth-child(8){left:50%;width:25px;height:25px;animation-delay:15s;animation-duration:45s}.circles li:nth-child(9){left:20%;width:15px;height:15px;animation-delay:2s;animation-duration:35s}.circles li:nth-child(10){left:85%;width:150px;height:150px;animation-delay:0s;animation-duration:11s}