.GLTFViewer{position:absolute;top:0;left:0;right:0;bottom:0;background-color:#000}.GLTFViewer__viewport{width:100%;height:100%}.GLTFViewer__message{position:absolute;top:50%;left:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);text-align:center}