.cs__container {
    display: none;
    position: absolute;
    top: 0;
    right: 23px;
    bottom: 0;
    width: 3px;
    background: #d9d9d9;
    margin: 100px 0;
}
.cs__scroll {
    height: 50px;
    width: 5px;
    background: #0992d4;
    margin-left: -1px;
    cursor: pointer;
    transition: background .2s, width .2s, margin-left .2s;
}
.cs__scroll:active,
.cs__scroll:hover {
    background: #2BB4F6;
}