Q:

How can I include the CSS file in CodeIgniter?

I have make a assets folder in root directory where application folder exist. now I have assets sibling to application.
Now when I tried to open http://localhost/CodeIgniter/assets/css/bootstrap.min.css in web-page it's not working.
Do someone can help me how I can got it worked.
In a solution I found that writing this line in config file will work but it's not work either by doing this change.
$config['base_url'] = 'http://localhost/CodeIgniter/';

Now please some guideline me how to load CSS file in CI.
solution :- 
I have done something wrong in my codeigniter project. I download it again and try these thing again, without anything it's working.
thanks you all of guys. you save my time.

A:

In constant.php:
define('URL','http://localhost/CodeIgniter/');
define('IMG',URL.'assets/img/');
define('CSS',URL.'assets/css/');
define('JS',URL.'assets/js/');

In config.php:
$config['base_url'] = URL;

In view:
<link rel="stylesheet" href="<?php echo(CSS.'bootstrap.min.css'); ?>">

Hope that helps somewhat.

A:

define general css that used. 
Open "config.php" within directory CodeIgniter\system\application\config.
$config['css'] = 'mystyles.css';

Create a file named mystyles.css within root application: \CodeIgniter.
$this->load->helper('url');       
$data['css']        = $this->config->item('css'); 

You can load css in views pages like this.

