### Issue [#76](https://github.com/ckeditor/ckeditor5-ui-default/issues/76) manual test

 - make sure that entire editor is visible in browser viewport,
 - click on the `First link` and check if balloon panel appeared on bottom of the selection,
 - close panel, click on the `Second link` and check if balloon panel appeared on bottom of the selection,
 - close panel, click on the `Third link` and check if balloon panel appeared on top of the selection,
 - close panel, scroll page to the `SCROLL HERE` marker, click on the `Third link` and check
 if balloon panel appeared on bottom of the selection.
