.contenedor{
    width: 100%;
    margin-left: 30px;
    margin-right: 30px;
}

#slider_clientes{
    width: 92%;
    height: 213px;
    background-image: url(../img/banner_clientes.jpg);
    background-size: 305% 100%;
    margin-bottom: 20px;
    padding-right: 30px;
    animation: slid_clientes 50s infinite linear;
}

#slider_clientes2{
    width: 92%;
    height: 65px;
    background-image: url(../img/banner_clientes.jpg);
    background-size: 100% 100%;
    margin-bottom: 20px;
    padding-right: 30px;
    animation: slid_clientes 50s infinite linear;
}

@keyframes slid_clientes {
     to {
         background-position: -2000px;
     }
}

@media (max-width:1000px) {
    #slider_clientes{
        height: 330px;
    }

    #slider_clientes2{
        height: 60px;
    }
}

@media (max-width:800px) {
    #slider_clientes{
        height: 285px;
    }

    #slider_clientes2{
        height: 47px;
    }
}

@media (max-width:680px) {
    #slider_clientes{
        height: 225px;
    }
}

@media (max-width:630px) {
    #slider_clientes2{
        height: 38px;
    }
}

@media (max-width:500px) {
    #slider_clientes{
        height: 160px;
    }
    #slider_clientes2{
        height: 30px;
    }
}

@media (max-width:400px) {
    #slider_clientes{
        height: 120px;
    }
    #slider_clientes2{
        height: 22px;
    }
}

@media (max-width:300px) {
    #slider_clientes{
        height: 90px;
    }

    #slider_clientes2{
        height: 18px;
    }
}