 <p>Solved, after change all linking to CSS :</p> <pre><code>&lt;!-- Bootstrap Core CSS --&gt; &lt;link href="&lt;?php echo base_url();?&gt;public/css/bootstrap.min.css" rel="stylesheet"&gt; &lt;!-- Custom CSS --&gt; &lt;link href="&lt;?php echo base_url(); ?&gt;public/css/shop-homepage.css" rel="stylesheet"&gt; </code></pre> <p>and change <code>config.php</code> to :</p> <pre><code>$config['base_url'] = 'http://localhost/cidlab'; </code></pre> <p>Refer to <a href="http://stackoverflow.com/questions/26332068/codeigniter-404-not-found-css">here</a> and Thanks to Google Chrome</p>