fixed space bar behavior

mainwindow.cpp

@@ -62,15 +62,15 @@ void MainWindow::initStateMachine()
     mState.start();
 }
 
+void MainWindow::on_btn_startstop_clicked()
+{
+    triggerCssUpdate();
+}
+
 void MainWindow::triggerCssUpdate()
 {
     qDebug() << QTime::currentTime() << "updating CSS"; // rogo: delete
     setStyleSheet(mCss);
 }
 
-void MainWindow::on_btn_startstop_clicked()
-{
-    triggerCssUpdate();
-}
-
 }