No-Library (pure JS), HTML, CSS, JavaScript
For css-tricks user.
For a Forrst member.
http://jsfiddle.net/simurai/sXBxN/
For Forrst member.
Inspired by: http://daneden.me/labs/stockport/
Also works with visibility
From: http://forrst.com/posts/Fun_with_nth_child_apparent_randomness-vbb
For StackOverflow user.