.media-modal canvas,
.media-modal img
{background: none}
  .emojione:hover
  {
    width: 50px !important;
 /* set the width and height of the expanded emojo here */
    height: 50px !important;
    transition: all 0.3s ease-in-out !important;
    /* the 0.3s is the animation time for growing the emojo, it can be set to 0 */;
  }

  .emojione
  {
    transition: all 0.2s ease-in-out;
    /* the 0.2s is the animation time for shrinking the emojo, it can be set to 0 */;
  }