Missing Controller

Error: Mainstyles.cssController could not be found.

Error: Create the class Mainstyles.cssController below in file: app/controllers/mainstyles.css_controller.php

<?php
class Mainstyles.cssController extends AppController {

	var $name = 'Mainstyles.css';
}
?>

Notice: If you want to customize this error message, create app/views/errors/missing_controller.ctp