h1 {
  color: #369;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 250%;
}

.app-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -20px 0 0 -20px;
  -webkit-animation: spin 1.5s linear infinite;
  -moz-animation: spin 1.5s linear infinite;
  animation: spin 1.5s linear infinite;
}

.loading {
  opacity: 0;
}

@-moz-keyframes spin {
  100% {
    -moz-transform: rotate(360deg);
  }
}
@-webkit-keyframes spin {
  100% {
    -webkit-transform: rotate(360deg);
  }
}
@keyframes spin {
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
