body {
    margin: auto;
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    overflow: auto;
    background: linear-gradient(315deg, rgb(100, 65, 122) 3%, rgba(60, 132, 206, 1) 38%, rgba(48, 238, 226, 1) 68%, rgb(23, 80, 252) 98%);
    animation: gradient 10s ease infinite;
    background-size: 400% 400%;
    background-attachment: fixed
}

@keyframes gradient {
    0% {
        background-position: 0 0
    }
    50% {
        background-position: 100% 100%
    }
    100% {
        background-position: 0 0
    }
}

.wave {
    background: rgb(255 255 255 / 25%);
    border-radius: 1000% 1000% 0 0;
    position: fixed;
    width: 200%;
    height: 12em;
    animation: wave 10s -3s linear infinite;
    transform: translate3d(0, 0, 0);
    opacity: .8;
    bottom: 0;
    left: 0;
    z-index: 0
}

.wave:nth-of-type(2) {
    bottom: -1.25em;
    animation: wave 18s linear reverse infinite;
    opacity: .8
}

.wave:nth-of-type(3) {
    bottom: -2.5em;
    animation: wave 20s -1s reverse infinite;
    opacity: .9
}

@keyframes wave {
    2% {
        transform: translateX(1)
    }
    25% {
        transform: translateX(-25%)
    }
    50% {
        transform: translateX(-50%)
    }
    75% {
        transform: translateX(-25%)
    }
    100% {
        transform: translateX(1)
    }
}