So, I'm looking at this code:
<!--BEGIN #widget-pages-->
<div id="widget-pages" class="widget">
<h3 class="widget-title">Pages</h3>
<ul class="xoxo">
<?php wp_list_pages( 'title_li=' ); ?>
<!--END #widget-pages-->
Where's the CSS file for all this code? Because I'm trying to add new things on the sidebar but can't fully customize it.
Thank you.