Slide your each of content div like a "lift" very simply!
The best way for show and hide the content div (div.entry-content) with slide (toggle) effect of jQuery.
For each post: Click on the h1 title (h1.entry-title) it becomes ".active" class and unroll the content div. Click one seconde time and the h1 title becomes normal class and the content div roll to hidden status. (Basicly developped for WP 3.3 with the "Twenty Eleven" 1.2 template)