div#content, just after the opening
div for each post.
If more than one post is shown on a page, this hook fires before each of them. The position of the post is passed as a parameter if needed in actions added to this hook (targeting only the first or third posts, for example).
<div class="post-1 post hentry category-uncategorized post_box top" id="post-1"> thesis_hook_post_box_top <div class="headline_area">
There are no default functions added to this hook.