div {
  box-sizing: border-box;
}

#app_loading {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes loading {
  0% {
    transform: rotate(0);
  }

  50% {
    transform: rotate(160deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.app_loading_circle {
  width: 3.3rem;
  height: 3.3rem;
  border-radius: 50%;
  border: 2px solid #d7d8d6;
  border-left: 2px solid #db0011;
  animation: loading 1s linear 0s infinite;
}