I'm in the process of coding my own Tumblr Theme.

Well I was wondering how should I list the posts? In the basic theme, (the one you get when you sign up) doesn't use list items (<li>). But I saw in another theme that it does use list items.

By the way, this is what I mean...

<div class="post-text"><div>
<div class="post-audio"><div>
...

or

<ul>
 <li class="post-text"></li>
...
</ul>

I'm confused on the way I should go - I want to go to the semantic way of doing it because the theme will be built in HTML5.