:host {
  background-color: #ccc;
  color: #555;
  font-family: sans-serif;
  font-size: 20px;
  height: 100%;
  pointer-events: none;
  position: fixed;
  text-align: center;
  width: 100%;
}

#load-failed-message {
  line-height: 0;
  position: absolute;
  top: 50%;
  width: 100%;
}