#poslide{
    position: relative;
    width: 420px;
    height: 320px;
    border: 1px solid #000;
    overflow: hidden;
    background: url(https://img.ashampoo.com/ashampoo.com_images/img/1/productpage/po5slide.jpg) center;
    background-repeat: no-repeat;
}
#poslider{
    position: absolute;
    width: 20px;
    height: 100%;
    right: 0;
    top: 0;
    z-index: 2;
    cursor: pointer;

}
#posliderline{
    margin-right: 18px;
    height: 100%;
    background-color: #fff;
}
#poslider IMG{
    position: absolute;
    top: 5px;

}
#poslider IMG.left{
    left: -10px;
}
#poslider IMG.right{
    left: 5px;
}
#poslideimg{
    position: absolute;
    right: 20px;
    top: 0;
    width: 420px;
    height: 320px;
    background-color: #3a3a3a;
    z-index: 1px;
    opacity: 0.25;
}