php category code between li tags doesn't get styled

I want to style each categorylink separately, so I made it like this:

<ul>
		<li class="menu-home"><?php wp_list_cats('include=3'); ?>
		<li class="menu-actueel"><?php wp_list_cats('include=8'); ?>
		<li class="menu-algemeen"><?php wp_list_cats('include=6'); ?>
		<li class="menu-collectie"><?php wp_list_cats('include=4'); ?>
		<li class="menu-activiteiten"><?php wp_list_cats('include=5'); ?>
		<li class="menu-contact"><?php wp_list_cats('include=7'); ?>
	</ul>

This is what happens after applying a little styling to the first category:
https://www.plaatjesupload.nl/bekijk/2011/05/08/1304868545-970.jpg

It’s outside..? I’ve thought other things in my stylesheet affected this, but they didn’t. I removed margins and paddings from every parent element I could think of.

Then I replaced the <?php wp_list_cats(‘include=3’); ?> with just a random word and then it dóes get applied:
https://www.plaatjesupload.nl/bekijk/2011/05/08/1304868763-370.jpg

So nothing’s wrong with my stylesheet. The php code is having some difficulty with this. Strangely enough stuff like text-align: right; seems to be ignored from the parent elements..

What can I do about this? Is there a way to call each category ID separately without calling the list class?

Here’s the link for the style as it is right now:
https://1586563.huweb.nl/wp-content/themes/canvas/style.css