closeBtn.getStyleClass().setAll("tab-close-button");
closeBtn.setOnMousePressed(new EventHandler<MouseEvent>() {
@Override public void handle(MouseEvent me) {
Tab tab = getTab();
TabPaneBehavior behavior = getBehavior();
if (behavior.canCloseTab(tab)) {
removeListeners(tab);
behavior.closeTab(tab);
setOnMousePressed(null);
}
}