.waves {
    position: relative;
    width: 100%;
    background-color: transparent;
    height: 150px;
    overflow: hidden;
}

.waves .wave {
    position: absolute;
    bottom: 0%;
    left: 0%;
    width: 100%;
    height: 100px;
    background: url("../img/me/wave.png");
}

.waves .wave.wave1 {
    animation: animate 30s alternate infinite;
    z-index: 99;
    opacity: 1;
    animation-delay: 0s;
    bottom: 0%;
}

.waves .wave.wave2 {
    animation: animate2 15s alternate infinite;
    z-index: 98;
    opacity: 0.5;
    animation-delay: -5s;
    bottom: 10px;
}

.waves .wave.wave3 {
    animation: animate 30s alternate infinite;
    z-index: 97;
    opacity: 0.2;
    animation-delay: -2s;
    bottom: 15px;
}

.waves .wave.wave4 {
    animation: animate2 15s alternate infinite;
    z-index: 96;
    opacity: 0.7;
    animation-delay: -5s;
    bottom: 10px;
} 

@keyframes animate {
    0% {
        background-position-x: 0;
    }
    100% {
        background-position-x: 1000px;
    }
}

@keyframes animate2 {
    0% {
        background-position-x: 0;
    }
    100% {
        background-position-x: -1000px;
    }
}