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.

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.

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.

Add below line in your controller action /application/controllers/yourController.php

$this->load->helper('url');

Then add below line to your view file's head tag.

<link rel="stylesheet" type="text/css" href="<? echo base_url('assets/css/yourcssfile.css');?>" />

Assuming that you have assets/css/ folder is created in your app directory.

<path to your app folder>/assets/css

来源：https://stackoverflow.com/questions/14008832/how-can-i-include-the-css-file-in-codeigniter

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