#backToTop {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background-color: var(--color-primary-button-primary);

  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 24px;
  display: none;
  z-index: 3000;
  box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.3);

  transition: all 0.5s ease;
}

#backToTop:hover {
  background-color: var(--color-primary-button-hover);
}
#backToTop:active {
  background-color: var(--color-primary-button-active);
}

#backToTop img {
  width: 100%;
  height: 100%;
}