.app-loader {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  background-color: #333333;
  padding-top: 20px;
  padding-bottom: 20px;
}

.app-loader img {
  width: 250px;
}

.css-loader {
  width: 48px;
  height: 48px;
  border: 5px solid #FFFFFF;
  border-bottom-color: transparent;
  border-radius: 50%;
  display: inline-block;
  box-sizing: border-box;
  animation: rotation 1s linear infinite;
  margin-left: 20px;
}

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

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