body {
  overflow: hidden;
  width: 100%;
  height: 100%;
  margin: -1px 0px 0px 0px !important;
  padding: 0;
}

#swap-btn {
  width: 60px;
  height: 60px;
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  background: white;
  border-radius: 50px;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}