habitica/website/client/assets/scss/loading-screen.scss

#loading-screen, #loading-screen-inapp {
  z-index: 1050;
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: center;

  background-color: $purple-100;
  color: $white;

  font-size: 16px;
  line-height: 1.5;
}

@keyframes fadeColor {
  0% {
    opacity: 0.48;
  }
  50% {
    opacity: 1.0;
  }
  100% {
    opacity: 0.48;
  }
}

#melior {
  animation: fadeColor 2.4s infinite;
  height: 4rem;
  margin-left: -1rem;
}