/* hide horizontal scrollbars, since we use the vertical ones to scroll to the right */
body
{
    overflow-x: hidden;
}

/**
  * important: keep position fixed, you can however use top:0 instead of bottom:0
  * if you want to make it stick to the top of the browser
  */
.scroll
{
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    left: 50%;
}