.od-slider{
    position: relative;
    width:100%;
    overflow:hidden;
}

.od-slide{
    position:absolute;
    width:100%;
    height:100%;
    background-size:cover;
    background-position:center;
    opacity:0;
    transition:opacity 1.5s ease-in-out, transform 1.2s ease-in-out;
}

.od-slide.active{
    opacity:1;
}