.scrollbar {
    float:right;
    position: absolute;
    height: 100%;
    width: 15px;
    right: 0;
    background-color: #ccc;
    cursor: pointer;
}

.scrollbar:hover {
    background-color: #bbb;
}

.scroll-floater {
    position: absolute;
    height: 10%;
    width: 100%;
    top: 50%;
    background-color: #aaa;
    cursor: pointer;
    z-index: 100;
}

.scroll-floater:hover {
    background-color: #999;
}