.waves {
    position:relative;
    width: 100%;
    height:12vh;
    margin-bottom:-7px;
    min-height:100px;
    max-height:150px;
}		
.parallax > use {
    animation: move-forever 25s cubic-bezier(.55,.5,.45,.5) infinite;
}
.parallax > use:nth-child(1) {
    animation-delay: -2s;
    animation-duration: 10s;
}
.parallax > use:nth-child(2) {
    animation-delay: -3s;
    animation-duration: 15s;
}
.parallax > use:nth-child(3) {
    animation-delay: -4s;
    animation-duration: 20s;
}
.parallax > use:nth-child(4) {
    animation-delay: -5s;
    animation-duration: 25s;
}
@keyframes move-forever {
    0% {
        transform: translate3d(-90px,0,0);
    }
    100% { 
        transform: translate3d(85px,0,0);
    }
}				
@media (max-width: 768px){
    .waves{							
        height:10vh;
        min-height:40px;
    }			
}