/* Please define your custom styles here */

/* to center an element horizontally and vertically
   using flexbox, see https://stackoverflow.com/questions/14123999/center-a-div-horizontally-and-vertically
*/

.center-center {
   position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}