#horizon {
    width: 100%;
    height: 75vh;
    background-image: url('/sprit/montagne.svg');
    background-repeat: repeat-x;
    background-size: contain;
}
#img_horizon {
    visibility: hidden;
    display: none;
}


@media screen and (min-width: 500px) {
    #horizon {
        height: 40vh;

    }
}
@media screen and (max-width: 501px) {
    #horizon {
        height: 20vh;
        /*background-repeat: no-repeat;*/
    }
}
/*@media screen and (min-width: 985px) {
    #horizon {
        height: 70vh;
    }
}*/