*.unselectable {
  -moz-user-select: -moz-none;
  -khtml-user-select: none;
  -webkit-user-select: none;

  /*
    Introduced in IE 10.
    See http://ie.microsoft.com/testdrive/HTML5/msUserSelect/
  */
  -ms-user-select: none;
  user-select: none;
}

.res {
  display: flex;
  justify-content: space-between;
}

.center {
  text-align: center;
}