Should I include bootstrap.css and bootstrap-responsive.css together?

Should I include two css file or one is enough?

<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css" media="all" />
<link rel="stylesheet" href="bootstrap/css/bootstrap-responsive.min.css" media="all" />

<link rel="stylesheet" href="bootstrap/css/bootstrap-responsive.min.css" media="all" />

Solution

Bootstrap 2

You should include both, the first one defines all the styles for html elements whilst the second one adds responsiveness to the layout.

Bootstrap 3

Only one css file will be included.

Happy coding!