diff --git a/demo/MainWindow.cpp b/demo/MainWindow.cpp
index cca3465..43a3a54 100644
--- a/demo/MainWindow.cpp
+++ b/demo/MainWindow.cpp
@@ -232,8 +232,9 @@ void MainWindowPrivate::createContent()
 	// Test creation of floating dock widgets
 	DockWidget = createFileSystemTreeDockWidget(ViewMenu);
     auto FloatingWidget = DockManager->addDockWidgetFloating(DockWidget);
-    FloatingWidget->move(QPoint(0,0));
+    FloatingWidget->move(QPoint(0, 0));
     FloatingWidget = DockManager->addDockWidgetFloating(createLongTextLabelDockWidget(ViewMenu));
+    FloatingWidget->move(QPoint(100, 100));
 
     auto Action = ui.menuView->addAction(QString("Set %1 floating").arg(DockWidget->windowTitle()));
     DockWidget->connect(Action, SIGNAL(triggered()), SLOT(setFloating()));
@@ -326,7 +327,7 @@ CMainWindow::CMainWindow(QWidget *parent) :
 
     // uncomment the follwing line if you want to use non opaque undocking and splitter
     // moevements
-    //CDockManager::setConfigFlags(CDockManager::DefaultNonOpaqueConfig);
+    CDockManager::setConfigFlags(CDockManager::DefaultNonOpaqueConfig);
 
 	// Now create the dock manager and its content
 	d->DockManager = new CDockManager(this);
diff --git a/src/FloatingDockContainer.cpp b/src/FloatingDockContainer.cpp
index 0c9092d..5872ba7 100644
--- a/src/FloatingDockContainer.cpp
+++ b/src/FloatingDockContainer.cpp
@@ -509,7 +509,7 @@ void CFloatingDockContainer::startFloating(const QPoint &DragStartMousePos,
 #ifdef Q_OS_LINUX
 	if (DraggingFloatingWidget == DragState)
 	{
-		setAttribute(Qt::WA_X11NetWmWindowTypeDock, true);
+        setAttribute(Qt::WA_X11NetWmWindowTypeDock, true);
 		d->MouseEventHandler = MouseEventHandler;
 		if (d->MouseEventHandler)
 		{
diff --git a/src/FloatingOverlay.cpp b/src/FloatingOverlay.cpp
index 6195e0d..f21ced2 100644
--- a/src/FloatingOverlay.cpp
+++ b/src/FloatingOverlay.cpp
@@ -177,6 +177,12 @@ CFloatingOverlay::CFloatingOverlay(QWidget* Content, QWidget* parent) :
 		setAttribute(Qt::WA_TranslucentBackground);
 	}
 
+#ifdef Q_OS_LINUX
+    auto Flags = windowFlags();
+    Flags |= Qt::WindowStaysOnTopHint | Qt::X11BypassWindowManagerHint;
+    setWindowFlags(Flags);
+#endif
+
 	setWindowOpacity(0.6);
 	// We install an event filter to detect mouse release events because we
 	// do not receive mouse release event if the floating widget is behind