.app {
  position: fixed;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  background-color: #fbd4d9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 25px;
  font-weight: bolder;
  text-align: center;
}
.app  img {
  width: 200px;
  margin-bottom: 15px;
}