body {
  margin: 0;
}

#loading-bg {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}
.loading-logo {
  animation: Opacity 1.5s ease infinite;
}

@keyframes Opacity {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}