.elevator.up{
  position: fixed;
  right: 20px;
  bottom: 0px;
  display: inline-block;
  width: 28px;
  height: 28px;
  overflow: hidden;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  visibility: hidden;
  background: rgba(0, 0, 0, .4);
  background-image: none;
  border-radius: 50%;
  -webkit-box-shadow: 0 0 10px rgba(0, 0, 0, .05);
          box-shadow: 0 0 10px rgba(0, 0, 0, .05);
  opacity: 0;
  -webkit-transition: all .3s ease;
       -o-transition: all .3s ease;
          transition: all .3s ease;
}
.elevator.down{
  position: fixed;
  right: 20px;
  bottom: 60px;
  display: inline-block;
  width: 28px;
  height: 28px;
  overflow: hidden;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  visibility: hidden;
  background: rgba(0, 0, 0, .4);
  background-image: none;
  border-radius: 50%;
  -webkit-box-shadow: 0 0 10px rgba(0, 0, 0, .05);
          box-shadow: 0 0 10px rgba(0, 0, 0, .05);
  opacity: 0;
  -webkit-transition: all .3s ease;
       -o-transition: all .3s ease;
          transition: all .3s ease;
}
.elevator.left{
  position: fixed;
  right: 20px;
  bottom: 30px;
  display: inline-block;
  width: 28px;
  height: 28px;
  overflow: hidden;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  visibility: hidden;
  background: rgba(0, 0, 0, .4);
  background-image: none;
  border-radius: 50%;
  -webkit-box-shadow: 0 0 10px rgba(0, 0, 0, .05);
          box-shadow: 0 0 10px rgba(0, 0, 0, .05);
  opacity: 0;
  -webkit-transition: all .3s ease;
       -o-transition: all .3s ease;
          transition: all .3s ease;
}
.elevator.elevator-is-visible {
  visibility: visible;
  opacity: 1;
  z-index: 9999;
}
.elevator .fa.fa-arrow-up {
  position: absolute;
  bottom:7px;
  left: 8px;
  padding: 0;
  margin: 0;
  font-size: 14px;
  color: white;
  -webkit-transition: all .3s ease;
       -o-transition: all .3s ease;
          transition: all .3s ease;
}
.elevator .fa.fa-arrow-down {
  position: absolute;
  top:7px;
  left: 8px;
  padding: 0;
  margin: 0;
  font-size: 14px;
  color: white;
  -webkit-transition: all .3s ease;
       -o-transition: all .3s ease;
          transition: all .3s ease;
}
.elevator .fa.fa-arrow-left {
  position: absolute;
  top:7px;
  right: 7px;
  padding: 0;
  margin: 0;
  font-size: 14px;
  color: white;
  -webkit-transition: all .3s ease;
       -o-transition: all .3s ease;
          transition: all .3s ease;
}
.elevator:hover {
  background: rgba(0, 0, 0, .4);
}
.elevator:hover .fa.fa-chevron-down {
  top: 5px;
  color: white;
}
.elevator:hover .fa.fa-chevron-up {
  bottom: 7px;
  color: white;
}
.elevator:hover .fa.fa-chevron-left {
  right: 7px;
  color: white;
}
@media (max-width: 768px) {
  .elevator {
    /* only show elevator on desktop screen */
    right: 5px !important;
  }
}