.float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 30px;
  right: 20px;
  background-color: whitesmoke;
  color: green;
  font-size: 30px;
  border-radius: 50px;
  text-align: center;
  box-shadow: 2px 2px 3px black;
  z-index: 1;
}

.my-float {
  margin-top: 15px;
}