.troggles {
    height:500px;
    left:50%;
    margin-left:-300px;
    overflow:hidden;
    position:absolute;
    top:110px;
    width:600px;
    z-index:0;

    .troggle {
        background: url('../../res/troggle.png');
        height:100px;
        position:absolute;
        transition:left 0.3s, top 0.3s;
        width:100px;
    }
}