message: fix(NumberKeyboard): incorrect key height on legacy safari
diff: cursor: pointer;
  &--large {
  - height: 100%;
  + // height: 100% can't fill flex parent on legacy safari
  + // see: https://stackoverflow.com/questions/33636796
  + position: absolute;
  + top: 0;
  + right: 6px;
  + bottom: 6px;
  + left: 0;
  + height: auto;
  }
  &--blue,
  }
  &__wrapper {
  + position: relative;
  flex: 1;
  flex-basis: 33%;
  box-sizing: border-box;
  