Styling current post link in sidebar

In my current WP project I have a list of posts on the sidebar, but I wish to style the current open post link on the sidebar. Is there a way to insert a class to the link of the current open post in the sidebar? I am trying to make it looks like the hover that it haves.

You can find the post list in this link: http://kiwimidia.com/pino/?cat=4

I am using the following code to list the post titles in the sidebar:

<ul>
    <?php
	global $post;
	$myposts = get_posts('numberposts=20&offset=0&category=3');
	foreach($myposts as $post) :
    ?>

       <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
       <?php endforeach; ?>

</ul>

I´ve been trying to find some old resolved topic but nothing quite like this.

Thank you for the help