html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background-color: white;
}

#flutter-loader {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100vw;
  background-color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

#flutter-loader img {
  width: 120px;
  height: auto;
  animation: butterfly 2s infinite ease-in-out;
  transform-origin: center center;
}

@keyframes butterfly {
  0% {
    transform: rotateY(0deg) scale(1);
  }
  25% {
    transform: rotateY(15deg) scale(1.05);
  }
  50% {
    transform: rotateY(0deg) scale(1);
  }
  75% {
    transform: rotateY(-15deg) scale(1.05);
  }
  100% {
    transform: rotateY(0deg) scale(1);
  }
}