wave.css

.header {
    position: relative;
    text-align: center;
    background: linear-gradient(
        60deg,
        rgba(84, 58, 183, 1) 0%,
        rgb(0, 138, 156) 100%
    );
    color: white;
}

.inner-header {
    height:65vh;
    width:100%;
    margin: 0;
    padding: 0;
}

.flex {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.waves {
    width: 100%;
    height: 15vh;
    position: fixed;
    bottom: 0;
}

.content {
    position: relative;
    height: 20vh;
    text-align: center;
    background-color: rgba(84, 58, 183, 1);
}

.parallax>use {
    animation:move-forever 25s cubic-bezier(.55, .5, .45, .5) infinite;
}

.parallax>use:nth-child(1) {
    animation-delay: -2s;
    animation-duration: 7s;
}

.parallax>use:nth-child(2) {
    animation-delay: -3s;
    animation-duration: 10s;
}

.parallax>use:nth-child(3) {
    animation-delay: -4s;
    animation-duration: 13s;
}

.parallax>use:nth-child(4) {
    animation-delay: -5s;
    animation-duration: 20s;
}

@keyframes move-forever {
    0% {
        transform: translate3d(-90px, 0, 0);
    }

    100% {
        transform: translate3d(85px, 0, 0);
    }
}