diff --git a/simplesvnbrowser/main_window.py b/simplesvnbrowser/main_window.py
index 6f47415..9fa253e 100644
--- a/simplesvnbrowser/main_window.py
+++ b/simplesvnbrowser/main_window.py
@@ -8,8 +8,25 @@ class MainWindow(Gtk.Window):
     def __init__(self, url):
         super().__init__(title = "Simple SVN Browser v%s" % VERSION)
 
-        button = Gtk.Button(label = "content")
-        self.add(button)
+        top_hbox = Gtk.Box()
+        address_entry = Gtk.Entry(text = url)
+        go_button = Gtk.Button(label = "Go")
+        top_hbox.pack_start(address_entry, True, True, 0)
+        top_hbox.pack_start(go_button, False, True, 0)
+
+        vbox = Gtk.Box(orientation = Gtk.Orientation.VERTICAL)
+        vbox.pack_start(top_hbox, False, True, 0)
+
+        bottom_hbox = Gtk.Box()
+        self.directory_vbox = Gtk.Box(orientation = Gtk.Orientation.VERTICAL)
+        self.directory_vbox.pack_start(Gtk.Label(label = "left placeholder"), False, True, 0)
+        bottom_hbox.pack_start(self.directory_vbox, False, True, 0)
+        separator = Gtk.Separator(orientation = Gtk.Orientation.VERTICAL)
+        bottom_hbox.pack_start(separator, False, True, 0)
+        bottom_hbox.pack_start(Gtk.Label(label = "right placeholder"), True, True, 0)
+        vbox.pack_start(bottom_hbox, True, True, 0)
+
+        self.add(vbox)
 
         self.connect("delete-event", Gtk.main_quit)
         self.show_all()