diff --git a/src/single_window/control_bar.cpp b/src/single_window/control_bar.cpp
index 551e42b..cbddd37 100644
--- a/src/single_window/control_bar.cpp
+++ b/src/single_window/control_bar.cpp
@@ -5,16 +5,24 @@
 #include "render.h"
 
 int Render::ControlBar() {
-  ImVec2 bar_pos = ImGui::GetWindowPos();
-
   ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
 
   if (control_bar_expand_) {
-    ImGui::SetCursorPosX(is_control_bar_in_left_ ? (control_window_width_ + 5)
-                                                 : 53);
+    ImGui::SetCursorPosX(
+        is_control_bar_in_left_ ? (control_window_width_ + 5.0f) : 53.0f);
     // Mouse control
     ImDrawList* draw_list = ImGui::GetWindowDrawList();
-    float disable_mouse_x = ImGui::GetCursorScreenPos().x + 4;
+
+    if (is_control_bar_in_left_) {
+      draw_list->AddLine(
+          ImVec2(ImGui::GetCursorScreenPos().x - 5.0f,
+                 ImGui::GetCursorScreenPos().y - 7.0f),
+          ImVec2(ImGui::GetCursorScreenPos().x - 5.0f,
+                 ImGui::GetCursorScreenPos().y - 7.0f + control_window_height_),
+          IM_COL32(178, 178, 178, 255), 1.0f);
+    }
+
+    float disable_mouse_x = ImGui::GetCursorScreenPos().x + 4.0f;
     float disable_mouse_y = ImGui::GetCursorScreenPos().y + 4.0f;
     std::string mouse = mouse_control_button_pressed_ ? ICON_FA_COMPUTER_MOUSE
                                                       : ICON_FA_COMPUTER_MOUSE;
@@ -96,10 +104,19 @@ int Render::ControlBar() {
     }
 
     ImGui::SameLine();
+
+    if (!is_control_bar_in_left_) {
+      draw_list->AddLine(
+          ImVec2(ImGui::GetCursorScreenPos().x - 3.0f,
+                 ImGui::GetCursorScreenPos().y - 7.0f),
+          ImVec2(ImGui::GetCursorScreenPos().x - 3.0f,
+                 ImGui::GetCursorScreenPos().y - 7.0f + control_window_height_),
+          IM_COL32(178, 178, 178, 255), 1.0f);
+    }
   }
 
   ImGui::SetCursorPosX(
-      is_control_bar_in_left_ ? (control_window_width_ * 2 - 18) : 3);
+      is_control_bar_in_left_ ? (control_window_width_ * 2 - 18.0f) : 3.0f);
 
   std::string control_bar =
       control_bar_expand_
diff --git a/src/single_window/control_window.cpp b/src/single_window/control_window.cpp
index c0a5e72..0e61c5a 100644
--- a/src/single_window/control_window.cpp
+++ b/src/single_window/control_window.cpp
@@ -121,5 +121,19 @@ int Render::ControlWindow() {
   ImGui::PopStyleVar(4);
   ImGui::PopStyleColor();
 
+  ImGui::SetNextWindowPos(ImVec2(0, title_bar_height_), ImGuiCond_Always);
+  ImGui::SetNextWindowSize(
+      ImVec2(main_window_width_, main_window_height_ - title_bar_height_),
+      ImGuiCond_Always);
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(0, 0, 0, 0));
+  ImGui::PushStyleColor(ImGuiCol_Border,
+                        ImVec4(178 / 255.0f, 178 / 255.0f, 178 / 255.0f, 1.0f));
+  ImGui::Begin("VideoBg", nullptr,
+               ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                   ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoScrollbar |
+                   ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PopStyleColor(2);
+  ImGui::End();
+
   return 0;
 }
\ No newline at end of file
diff --git a/src/single_window/render.cpp b/src/single_window/render.cpp
index 4f4dcea..4b810da 100644
--- a/src/single_window/render.cpp
+++ b/src/single_window/render.cpp
@@ -328,7 +328,7 @@ int Render::Run() {
   stream_render_rect_.x = 0;
   stream_render_rect_.y = title_bar_height_;
   stream_render_rect_.w = main_window_width_;
-  stream_render_rect_.h = main_window_height_;
+  stream_render_rect_.h = main_window_height_ - title_bar_height_;
 
   SDL_DisplayMode DM;
   SDL_GetCurrentDisplayMode(0, &DM);
@@ -491,7 +491,6 @@ int Render::Run() {
     ImGui::PushStyleColor(
         ImGuiCol_WindowBg,
         ImVec4(1.0f, 1.0f, 1.0f, fullscreen_button_pressed_ ? 0 : 1.0f));
-    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0);
     ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
     ImGui::SetNextWindowSize(
         ImVec2(main_window_width_,
@@ -502,7 +501,6 @@ int Render::Run() {
                  ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
                      ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoScrollbar |
                      ImGuiWindowFlags_NoBringToFrontOnFocus);
-    ImGui::PopStyleVar();
     ImGui::PopStyleColor();
 
     if (!fullscreen_button_pressed_) {
diff --git a/src/single_window/render.h b/src/single_window/render.h
index 1bcd3dd..b2a45a8 100644
--- a/src/single_window/render.h
+++ b/src/single_window/render.h
@@ -135,7 +135,7 @@ class Render {
   int main_window_width_default_ = 960;
   int main_window_height_default_ = 570;
   int main_window_width_ = 960;
-  int main_window_height_ = 540;
+  int main_window_height_ = 570;
   int main_window_width_last_ = 960;
   int main_window_height_last_ = 540;
   int stream_window_width_ = 1280;
diff --git a/src/single_window/title_bar.cpp b/src/single_window/title_bar.cpp
index adf0613..5c728da 100644
--- a/src/single_window/title_bar.cpp
+++ b/src/single_window/title_bar.cpp
@@ -5,13 +5,11 @@
 #define BUTTON_PADDING 36.0f
 
 int Render::TitleBar() {
-  // ImGui::PushStyleVar(ImGuiStyleVar_ChildBorderSize, 1);
-
   ImGui::PushStyleColor(ImGuiCol_MenuBarBg, ImVec4(1, 1, 1, 0.0f));
   ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
   ImGui::SetWindowFontScale(0.8f);
   ImGui::BeginChild("TitleBar", ImVec2(main_window_width_, title_bar_height_),
-                    ImGuiChildFlags_Border,
+                    ImGuiChildFlags_None,
                     ImGuiWindowFlags_MenuBar | ImGuiWindowFlags_NoDecoration |
                         ImGuiWindowFlags_NoBringToFrontOnFocus);
   ImDrawList* draw_list = ImGui::GetWindowDrawList();
@@ -154,6 +152,5 @@ int Render::TitleBar() {
 
   ImGui::EndChild();
   ImGui::PopStyleColor(2);
-  // ImGui::PopStyleVar();
   return 0;
 }
\ No newline at end of file