html, body { margin: 0; padding: 0; height: 100%; }
#container, #image {
  margin: 0; padding: 0;
  max-height: 100%;
}
#container { text-align: center; }
#loading { 
  background: rgba(255, 0, 0, 0.8); 
  display: none; 
  position: absolute;
  top: 50px;
  left: 30px;
  padding: 10px;
  color: #EFEFEF;
}