/*body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}*/

.center {
   /* height: 100vh;*/
    display: flex;
    justify-content: center;
    align-items: center;
/*    background: #000;
*/}

.wave {
    width: 5px;
    height: 100px;
    background: linear-gradient(45deg, blue, cyan);
    margin: 10px;
    animation: wave 1s linear infinite;
    border-radius: 20px;
}

    .wave:nth-child(2) {
        animation-delay: 0.1s;
    }

    .wave:nth-child(3) {
        animation-delay: 0.2s;
    }

    .wave:nth-child(4) {
        animation-delay: 0.3s;
    }

    .wave:nth-child(5) {
        animation-delay: 0.4s;
    }

    .wave:nth-child(6) {
        animation-delay: 0.5s;
    }

    .wave:nth-child(7) {
        animation-delay: 0.6s;
    }

    .wave:nth-child(8) {
        animation-delay: 0.7s;
    }

    .wave:nth-child(9) {
        animation-delay: 0.8s;
    }

    .wave:nth-child(10) {
        animation-delay: 0.9s;
    }

@keyframes wave {
    0% {
        transform: scale(0);
    }

    50% {
        transform: scale(1);
    }

    100% {
        transform: scale(0);
    }
}