.app-loading {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  top: 15em;
}
.app-loading > img {
  width: 400px;
  height: 300px;
  z-index: 100;
}