.bg-squares{position:absolute;top:0;left:0;width:100%;height:100%}.bg-squares li{position:absolute;list-style:none;display:block;width:80px;height:80px;background-color:#2b2d421b;bottom:-320px;animation:square 50s infinite;transition-timing-function:linear;border-radius:4px;-moz-border-radius:4px;-webkit-border-radius:4px;-khtml-border-radius:4px}.bg-squares li:first-child{left:60%;width:300px;height:300px;animation-duration:34s}.bg-squares li:nth-child(2){left:10%}.bg-squares li:nth-child(3){left:25%;animation-delay:4s}.bg-squares li:nth-child(4){left:40%;width:120px;height:120px;animation-duration:44s}.bg-squares li:nth-child(5){left:70%}.bg-squares li:nth-child(6){left:80%;width:240px;height:240px;animation-delay:3s}.bg-squares li:nth-child(7){left:32%;width:320px;height:320px;animation-delay:7s}.bg-squares li:nth-child(8){left:55%;width:40px;height:40px;animation-delay:15s;animation-duration:80s}.bg-squares li:nth-child(9){left:25%;width:20px;height:20px;animation-delay:2s;animation-duration:80s}@keyframes square{0%{transform:translateY(0)}to{transform:translateY(-1500px) rotate(600deg)}}