content.addComponent(new Label("Second"));
split.addComponent(content);
content = horizontal ? new VerticalSplitPanel()
: new HorizontalSplitPanel();
content.addComponent(new Label("First"));
split.addComponent(content);
// Inception level nesting, but we need to test that the first level
// styles don't leak to a nested split panel with the same orientation
AbstractSplitPanel content2 = horizontal ? new HorizontalSplitPanel()