.theme-div {
  position: fixed;
  right: 5px;
  bottom: 5px;
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  z-index: 10;
}

.btn-theme {
  border-radius: 50%;
  margin: 5px;
  margin-bottom: 10px;
  border: solid #9d9d32 3px;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
  cursor: pointer;
  background: linear-gradient(
    135deg,
    #efef65 55%, #47471d
  );
  transition: 120ms ease;
}

.btn-theme span{
  font-size: 3rem;
  padding: 1rem;
  color: #111;
}

.btn-theme:hover {
  transform: scale(0.95);
}

.btn-theme:active {
  transform: scale(0.85);
}

/*Media*/

@media (max-width: 425px) {
  .btn-theme span {
    font-size: 2rem;
    padding: 0.85rem;
  }
}

@media (max-width: 325px) {
  .btn-theme span {
    font-size: 1.5rem;
    padding: 0.65rem;
  }
}