diff --git a/src/main.py b/src/main.py
index daeddda..67585f9 100644
--- a/src/main.py
+++ b/src/main.py
@@ -1,17 +1,21 @@
 #!/usr/bin/env python3
 import threading
 import time
-from typing import NewType
 
 import pychromecast
 import wx
 import wx.lib.scrolledpanel as scrolled
 import wx.media
 
-from Channel import SVT, Channel, YouTube
+from Channel import SVT, YouTube
 from ChannelProvider import ChannelProvider
 from Utils import make_sized_button
 
+WIDTH = 720
+HEIGHT = 1440
+BTN_HEIGHT = 40
+SPACER_HEIGHT = 10
+
 class Cast(wx.Frame):
     def __init__(self, *args, **kw):
         """__init__.
@@ -20,7 +24,7 @@ class Cast(wx.Frame):
         """
         super().__init__(*args, **kw)
         self.m_selected_chromecast = None
-        self.SetSizeHints(480, 480, maxW=480)
+        self.SetSizeHints(WIDTH, HEIGHT, maxW=WIDTH)
         self.m_index = 0
         self.m_chromecast_thr = threading.Thread(
             target=self.get_chromecasts, args=(), kwargs={}
@@ -85,10 +89,10 @@ class Cast(wx.Frame):
         self.m_selected_provider = self.m_providers[provider_index]
         self.m_sizer.Clear(delete_windows=True)
         self.m_sizer = wx.BoxSizer(wx.VERTICAL)
-        backbtn = wx.Button(self.m_panel, -1, label="Go back", size=(480, 40))
+        backbtn = wx.Button(self.m_panel, -1, label="Go back", size=(WIDTH, BTN_HEIGHT))
         backbtn.Bind(wx.EVT_BUTTON, lambda event: self.show_provider_list(event))
         self.m_sizer.Add(backbtn, wx.ALIGN_CENTER_VERTICAL)
-        self.m_sizer.AddSpacer(10)
+        self.m_sizer.AddSpacer(SPACER_HEIGHT)
         channel_index = 0
         for channel in self.m_selected_provider.get_channels():
             bitmap = channel.get_logo_as_bitmap()
@@ -97,6 +101,7 @@ class Cast(wx.Frame):
             self.m_sizer.Add(btn_sizer)
             channel_index += 1
 
+        self.m_sizer.AddSpacer(SPACER_HEIGHT)
         self.m_panel.SetSizer(self.m_sizer)
         self.m_sizer.Fit(self)
         self.m_panel.Layout()
@@ -119,13 +124,13 @@ class Cast(wx.Frame):
                     time.sleep(1)
                     wx.GetApp().Yield()
 
-        backbtn = wx.Button(self.m_panel, -1, label="Go back", size=(480, 40))
+        backbtn = wx.Button(self.m_panel, -1, label="Go back", size=(WIDTH, BTN_HEIGHT))
         backbtn.Bind(
             wx.EVT_BUTTON,
             lambda event: self.show_channel_list(event, self.m_selected_provider_index),
         )
         self.m_sizer.Add(backbtn, wx.ALIGN_CENTER_VERTICAL)
-        self.m_sizer.AddSpacer(10)
+        self.m_sizer.AddSpacer(SPACER_HEIGHT)
         for item in channel.get_items():
             title = wx.StaticText(self.m_panel, -1)
             title.SetLabelMarkup("<span weight='bold' >{}</span>".format(item["title"]))
@@ -143,8 +148,9 @@ class Cast(wx.Frame):
             self.m_sizer.Add(title)
             self.m_sizer.Add(btn)
             self.m_sizer.Add(description)
-            self.m_sizer.AddSpacer(10)
+            self.m_sizer.AddSpacer(SPACER_HEIGHT)
             self.m_index = self.m_index + 1
+        self.m_sizer.AddSpacer(SPACER_HEIGHT)
         self.m_panel.SetSizer(self.m_sizer)
         self.m_sizer.Fit(self)
         self.m_panel.Layout()
@@ -160,7 +166,7 @@ class Cast(wx.Frame):
         self.m_sizer = wx.GridBagSizer()
         self.m_control = wx.media.MediaCtrl(
             self.m_panel,
-            size=(480, 480),
+            size=(WIDTH, HEIGHT),
             style=wx.SIMPLE_BORDER,
             szBackend=wx.media.MEDIABACKEND_GSTREAMER,
         )
@@ -203,6 +209,7 @@ class Cast(wx.Frame):
             pause_button.Bind(wx.EVT_BUTTON, self.pause)
 
         self.Bind(wx.media.EVT_MEDIA_FINISHED, self.show_video_list)
+        self.m_sizer.AddSpacer(SPACER_HEIGHT)
         self.load_uri(uri)
         self.m_panel.SetSizer(self.m_sizer)
         self.m_sizer.Fit(self)
@@ -215,7 +222,7 @@ class Cast(wx.Frame):
 
         for cast in self.m_chromecasts:
             friendly_name = cast.cast_info.friendly_name
-            btn = wx.Button(self.m_panel, id=-1, label=friendly_name, size=(480, 40))
+            btn = wx.Button(self.m_panel, id=-1, label=friendly_name, size=(WIDTH, BTN_HEIGHT))
             btn.Bind(
                 wx.EVT_BUTTON,
                 lambda event, chromecast=cast, muri=uri, index=provider_index: self.set_chromecast(
@@ -223,6 +230,7 @@ class Cast(wx.Frame):
                 ),
             )
             self.m_sizer.Add(btn, wx.ALIGN_CENTER_VERTICAL)
+        self.m_sizer.AddSpacer(SPACER_HEIGHT)
         self.m_panel.SetSizer(self.m_sizer)
         self.m_sizer.Fit(self)
         self.m_panel.Layout()