.btn-1 {
  background-color: rgb(51, 51, 51);
  color: white;
}
.btn-2 {
  background-color: orange;
}

.btn-1,
.btn-2 {
  color: white;
  height: 60px;
  width: 60px;
  border-radius: 60px;
  border: none;
  font-size: 26px;
  cursor: pointer;
  margin-right: 5px;
  text-align: center;
}
.clear-button {
  font-size: 17px;
}