.SnackBar {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: reverse;
      -ms-flex-direction: column-reverse;
          flex-direction: column-reverse;
}

  .SnackBar-Item_animate_appear,
      .SnackBar-Item_animate_enter,
      .SnackBar-Item_animate_exit,
      .SnackBar-Item_animate_appearActive,
      .SnackBar-Item_animate_enterActive,
      .SnackBar-Item_animate_exitActive {
        -webkit-transition: opacity 0.2s, -webkit-transform 0.2s;
        transition: opacity 0.2s, -webkit-transform 0.2s;
        transition: transform 0.2s, opacity 0.2s;
        transition: transform 0.2s, opacity 0.2s, -webkit-transform 0.2s;
      }

  .SnackBar-Item_animate_appear,
      .SnackBar-Item_animate_enter {
        opacity: 0;
        -webkit-transform: scale(0.5);
                transform: scale(0.5);
      }

  .SnackBar-Item_animate_appearActive,
      .SnackBar-Item_animate_enterActive {
        opacity: 1;
        -webkit-transform: scale(1);
                transform: scale(1);
      }

  .SnackBar-Item_animate_exit {
        opacity: 1;
        -webkit-transform: scale(1);
                transform: scale(1);
      }

  .SnackBar-Item_animate_exitActive {
        opacity: 0;
        -webkit-transform: scale(0.5);
                transform: scale(0.5);
      }