#scroll_up, #scroll_down {
    display:block;
    height: 15px;
    width: 20px;
    visibility:hidden;
  }
  #scroll_up {
    position:relative;
    left:5px;
    cursor: w-resize;
  }
  #scroll_down {
    position:relative;
    left:-5px;
    cursor: e-resize;
  }
  #scroll_box {
    width: 710px;
    overflow: auto;
    white-space:nowrap;
    text-align:center;
  }
  #inner_scroll_box {
    display:inline;
    width: auto; 
    height: auto; 
    white-space:nowrap;
    font-weight:bold;
    font-size:12px;
  }