function GridTileAnimator(grid, tiles) {
    grid.element.css(grid.style);
    tiles.forEach(function(t) {
      t.element.css(t.style);
    });
  }
Default Gridlist animator simple sets the css for each element;
NOTE: any transitions effects must be manually set in the CSS.
e.g.

 md-grid-tile {
   transition: all 700ms ease-out 50ms;
 }