message: Fixed: style changes absolute value to flex.
diff: .Numberinput__handlerButton {
  @apply --layout-center-center;
  - height: 50%;
  + flex-grow: 1;
  color: var(--color-basic-gray);
  + transition: flex-grow 0.1s linear;
  }
  .Numberinput__handlerButton:hover {
  - height: 70%;
  + flex-grow: 3;
  color: var(--color-text-anchorLight);
  cursor: pointer;
  - transition: height 0.1s linear;
  }
  .Numberinput__handlerButton:active {
  