message: Fix missing arrow when tooltip is shown below target.
diff: @@ -84,7 +84,7 @@ $half-arrow-size: $arrow-size * 0.5;
  width: 0;
  height: 0;
  border-width: 0 $half-arrow-size $half-arrow-size $half-arrow-size;
  - top: -$half-arrow-size;
  + top: -$arrow-size;
  border-color: transparent transparent var(--ribbon-color) transparent;
  }
  &[data-popper-placement='right'] .arrow {
  