diff --git a/20_sdl_camera.txt b/20_sdl_camera.txt
index 9771dff..9b1d2fe 100644
--- a/20_sdl_camera.txt
+++ b/20_sdl_camera.txt
@@ -1,17 +1,18 @@
 
-
-class Camera {
-public:
-    void bind();
-
-    Camera();
-    virtual ~Camera();
-
-    bool integer_scaling;
-    float scale_w;
-    float scale_h;
-    Rect2 viewport;
-    Rect2 clip_rect;
+|---------------------------------------------------------------------------------------|
+| class Camera                                                                          |
+|---------------------------------------------------------------------------------------|
+| + void bind();                                                                        |
+|                                                                                       |
+| + Camera();                                                                           |
+| + virtual ~Camera();                                                                  |
+|                                                                                       |
+| + bool integer_scaling;                                                               |
+| + float scale_w;                                                                      |
+| + float scale_h;                                                                      |
+| +  viewport;                                                                          |
+| + Rect2 clip_rect;                                                                    |
+|---------------------------------------------------------------------------------------|
 
 
 #include "camera.h"