I want to some space in sub menu(Dynamic menu) before image

hiii
 Actually when i give space before image then its consider after image.
I m using below code-
 
Menu menu = new Menu();
menu.MenuItemClick += new MenuEventHandler(menu_MenuItemClick);
 MenuItem row1 = new MenuItem();
row1.Text = "      ;
row1.ImageUrl = "ImageUpload\\" + r + ".Jpeg" + "?" + System.Guid.NewGuid().ToString();
 row.ChildItems.Add(row1);   
but space is showing after image............
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