define base_url()

Okay looks good!  Now, I am trying to post this:

views/cms/index.php

PHP Code:

<link href= "<?php echo base_url();?>style.css" rel="stylesheet" type="text/css" media="screen">
<script src="js/jquery.min.js" type="text/javascript"></script>
<script src="js/chili-1.7.pack.js"></script>
<script src="js/jquery.cycle.all.js" type="text/javascript"></script>
<script src="js/jquery.easing.1.3.js" type="text/javascript" ></script> 


I am trying to make style.css works!  I wonder why my style.css does not work.

" If I looks more intelligence please increase my reputation."