#ibyimd-back-to-top {
  display: none;
}

@media (max-width: 540px) {
  #ibyimd-back-to-top {
    display: block;
    position: fixed;
    bottom: 9.2rem;
    right: 1.6rem;
    box-shadow: 0 0.4rem 1.2rem rgba(0, 0, 0, 0.25);
    background-color: var(--e-global-color-secondary);
    color: var(--e-global-color-cb3c645);
    padding: 10px;
    border-radius: 50%;
    width: 5.6rem;
    height: 5.6rem;
    z-index: 9999;
  }
}