title: unity2d - set camera to fixed size
body: <p>I am new to unity and I am trying to attach my camera to a fixed background. So I have a camera object, and a sprite object that is the background, but I can't make the camera to be in the exact same height and width of the sprite background.
  this is screenshots of my project:</p>
  
  <p><a href="https://i.stack.imgur.com/ENaxp.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ENaxp.gif" alt="Screenshoot"></a></p>