.parallax_box {
    width: 20px;
    height: 50px;
    border-radius: 10%;
    border: solid 1px #fff;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    background-color: #f6993f;
    cursor:pointer;
    opacity: 0.7;
}
.parallax_line {
    width: 2px;
    height: 200px;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    background-color: #dddddd;
    opacity: 0.7;
}