.scroll-element_outer {
    display: none;
    height: 100px;
    position: absolute;
    right: 10px;
    top: 10px;
    width: 100px;
}
.scroll-element_outer .scroll-element_size,
.scroll-element_outer .scroll-element_track {
    background-color: #999;
    background-color: rgba(153, 153, 153, 0.4);
    height: 100%;
    position: absolute;
    right: 0;
    top: 0;
    width: 100%;
}
.scroll-element_outer .scroll-bar {
    background-color: #CCC;
    background-color: rgba(204, 204, 204, 0.5);
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
}

.scroll-element_outer.scroll-scrollx_visible,
.scroll-element_outer.scroll-scrolly_visible {
    display: block;
}