.backtotop {
  display: block;
  height: 86px;
  position: fixed;
  right: -300px;
  bottom: 1%;
  text-align: center;
  width: 300px;
  z-index: 99999999;
  border-top-color:#fff;
  border-bottom-color:#fff;

}


.backtotopr {
  display: block;
  height: 203px;
  position: fixed;
  right: -100px;
  top: 190px;
  text-align: center;
  width: 65px;
  z-index: 99999999;
  border-top-color:#fff;
  border-bottom-color:#fff;

}