GUI.Button child of the camera .

Hello ,

this is my script :

 {
     private GUISkin skin;
 
     void Start()
     {
         // Load a skin for the buttons
         skin = Resources.Load("GUISkin3") as GUISkin;
     }
 
     void OnGUI()
     {
         const int buttonWidth = 300;
         const int buttonHeight = 80;
 
         // Set the skin to use
         GUI.skin = skin;
         
         if (
             GUI.Button(
             // Center in X, 1/3 of the height in Y
             new Rect(
             Screen.width / 2 - (buttonWidth / 2),
             (2 * Screen.height / 5) - (buttonHeight / 2),
             buttonWidth,
             buttonHeight
             ),
             "New Game"
             )
             )
         {
             // Reload the level
             
         }

and i want to move the GUI.Button with the camera , i mean when the camera transform position, the GUI.Button follow the camera .. and thanks