div.scroller-button {
  border: 2px solid gray;
  border-radius: 32px;
  bottom: 40px;
  box-shadow: 0 0 6px gray;
  cursor: pointer;
  display: none;
  height: 40px;
  padding: 10px;
  position: fixed;
  right: 50px;
  width: 40px;
  z-index: 65000;
}
div.scroller-button:hover {
  background-color: #00c8ff;
  border-color: #30a1ba;
  box-shadow: 0 0 5px #0095ff;
}