@keyframes move {
    100% {
        transform: translate3d(0, 0, 1px) rotate(360deg);
    }
}

.background {
    position: fixed;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    background: #007bff;
    overflow: hidden;
}

.background span {
    width: 20vmin;
    height: 20vmin;
    border-radius: 20vmin;
    backface-visibility: hidden;
    position: absolute;
    animation: move;
    animation-duration: 45;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}


.background span:nth-child(0) {
    color: #3e00a8;
    top: 26%;
    left: 59%;
    animation-duration: 54s;
    animation-delay: -5s;
    transform-origin: -11vw 24vh;
    box-shadow: 40vmin 0 5.189336128228311vmin currentColor;
}
.background span:nth-child(1) {
    color: #1b004d;
    top: 47%;
    left: 99%;
    animation-duration: 34s;
    animation-delay: -21s;
    transform-origin: -8vw -21vh;
    box-shadow: 40vmin 0 5.770919624388505vmin currentColor;
}
.background span:nth-child(2) {
    color: #3e00a8;
    top: 8%;
    left: 43%;
    animation-duration: 45s;
    animation-delay: -17s;
    transform-origin: 9vw -5vh;
    box-shadow: -40vmin 0 5.094165185978102vmin currentColor;
}
.background span:nth-child(3) {
    color: #ffffff;
    top: 55%;
    left: 23%;
    animation-duration: 35s;
    animation-delay: -6s;
    transform-origin: -14vw 20vh;
    box-shadow: -40vmin 0 5.100016690691322vmin currentColor;
}
.background span:nth-child(4) {
    color: #1b004d;
    top: 87%;
    left: 26%;
    animation-duration: 22s;
    animation-delay: -15s;
    transform-origin: -6vw 13vh;
    box-shadow: 40vmin 0 5.1623575647308355vmin currentColor;
}
.background span:nth-child(5) {
    color: #ffffff;
    top: 17%;
    left: 37%;
    animation-duration: 42s;
    animation-delay: -22s;
    transform-origin: 6vw 15vh;
    box-shadow: -40vmin 0 5.107387219622743vmin currentColor;
}
.background span:nth-child(6) {
    color: #1b004d;
    top: 40%;
    left: 88%;
    animation-duration: 13s;
    animation-delay: -18s;
    transform-origin: -16vw -9vh;
    box-shadow: 40vmin 0 5.2805426304177185vmin currentColor;
}
.background span:nth-child(7) {
    color: #3e00a8;
    top: 83%;
    left: 52%;
    animation-duration: 20s;
    animation-delay: -46s;
    transform-origin: -11vw 23vh;
    box-shadow: 40vmin 0 5.429331284343194vmin currentColor;
}
.background span:nth-child(8) {
    color: #1b004d;
    top: 9%;
    left: 43%;
    animation-duration: 45s;
    animation-delay: -12s;
    transform-origin: 23vw 10vh;
    box-shadow: -40vmin 0 5.013876826739255vmin currentColor;
}
.background span:nth-child(9) {
    color: #ffffff;
    top: 70%;
    left: 45%;
    animation-duration: 17s;
    animation-delay: -49s;
    transform-origin: -16vw -17vh;
    box-shadow: 40vmin 0 5.972609996302874vmin currentColor;
}
.background span:nth-child(10) {
    color: #ffffff;
    top: 5%;
    left: 27%;
    animation-duration: 16s;
    animation-delay: -36s;
    transform-origin: 3vw 16vh;
    box-shadow: 40vmin 0 5.930048308221625vmin currentColor;
}
.background span:nth-child(11) {
    color: #3e00a8;
    top: 62%;
    left: 19%;
    animation-duration: 41s;
    animation-delay: -24s;
    transform-origin: 18vw 12vh;
    box-shadow: 40vmin 0 5.4064970067863785vmin currentColor;
}
.background span:nth-child(12) {
    color: #ffffff;
    top: 39%;
    left: 75%;
    animation-duration: 29s;
    animation-delay: -23s;
    transform-origin: -23vw 22vh;
    box-shadow: -40vmin 0 5.553425598950448vmin currentColor;
}
.background span:nth-child(13) {
    color: #ffffff;
    top: 16%;
    left: 10%;
    animation-duration: 28s;
    animation-delay: -15s;
    transform-origin: -8vw -22vh;
    box-shadow: -40vmin 0 5.588836048328365vmin currentColor;
}
.background span:nth-child(14) {
    color: #ffffff;
    top: 40%;
    left: 3%;
    animation-duration: 47s;
    animation-delay: -35s;
    transform-origin: -6vw -20vh;
    box-shadow: 40vmin 0 5.699151631443236vmin currentColor;
}
.background span:nth-child(15) {
    color: #1b004d;
    top: 64%;
    left: 45%;
    animation-duration: 54s;
    animation-delay: -9s;
    transform-origin: 17vw 2vh;
    box-shadow: -40vmin 0 5.4555219628813605vmin currentColor;
}
.background span:nth-child(16) {
    color: #ffffff;
    top: 92%;
    left: 2%;
    animation-duration: 16s;
    animation-delay: -22s;
    transform-origin: 14vw -11vh;
    box-shadow: 40vmin 0 5.814962305331288vmin currentColor;
}
.background span:nth-child(17) {
    color: #ffffff;
    top: 60%;
    left: 2%;
    animation-duration: 7s;
    animation-delay: -17s;
    transform-origin: 9vw -22vh;
    box-shadow: -40vmin 0 5.997699543052776vmin currentColor;
}
.background span:nth-child(18) {
    color: #ffffff;
    top: 60%;
    left: 5%;
    animation-duration: 44s;
    animation-delay: -26s;
    transform-origin: 25vw 4vh;
    box-shadow: 40vmin 0 5.909452977074577vmin currentColor;
}
.background span:nth-child(19) {
    color: #1b004d;
    top: 62%;
    left: 8%;
    animation-duration: 53s;
    animation-delay: -6s;
    transform-origin: -3vw 15vh;
    box-shadow: 40vmin 0 5.630309703459874vmin currentColor;
}