diff --git a/include/Win_GParted.h b/include/Win_GParted.h
index c2cb5b0c..80341317 100644
--- a/include/Win_GParted.h
+++ b/include/Win_GParted.h
@@ -64,6 +64,7 @@ private:
 	void create_format_menu_add_item( FSType filesystem, bool activate );
 	void init_device_info() ;
 	void init_hpaned_main() ;
+	void add_custom_css();
 
 	void refresh_combo_devices() ;
 	void show_pulsebar( const Glib::ustring & status_message ) ;
diff --git a/src/Win_GParted.cc b/src/Win_GParted.cc
index 0d82cc82..08924567 100644
--- a/src/Win_GParted.cc
+++ b/src/Win_GParted.cc
@@ -48,6 +48,7 @@
 #include "../config.h"
 
 #include <string.h>
+#include <gtkmm/cssprovider.h>
 #include <gtkmm/aboutdialog.h>
 #include <gtkmm/messagedialog.h>
 #include <gtkmm/radiobuttongroup.h>
@@ -141,6 +142,8 @@ Win_GParted::Win_GParted( const std::vector<Glib::ustring> & user_devices )
 	
 	//make sure harddisk information is closed..
 	hpaned_main .get_child1() ->hide() ;
+
+	add_custom_css();
 }
 
 Win_GParted::~Win_GParted()
@@ -669,6 +672,31 @@ void Win_GParted::init_hpaned_main()
 	hpaned_main .pack2( *scrollwindow, true, true );
 }
 
+void Win_GParted::add_custom_css()
+{
+	Glib::RefPtr<Gdk::Screen> default_screen = Gdk::Screen::get_default();
+	Glib::RefPtr<Gtk::CssProvider> provider = Gtk::CssProvider::create();
+
+	Glib::ustring custom_css;
+	if (gtk_get_minor_version() >= 20)
+		custom_css = "progressbar progress, trough { min-height: 8px; }";
+	else
+		custom_css = "GtkProgressBar { -GtkProgressBar-min-horizontal-bar-height: 8px; }";
+
+	try
+	{
+		provider->load_from_data(custom_css);
+	}
+	catch (Glib::Error& e)
+	{
+		std::cerr << e.what() << std::endl;
+	}
+
+	Gtk::StyleContext::add_provider_for_screen(default_screen,
+	                                           provider,
+	                                           GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+}
+
 void Win_GParted::refresh_combo_devices()
 {
 	// Temporarily block the on change callback while re-creating the device list