I have an users list, each user is wrapped by a div, this way
<div class="users">
<div>user 1 content</div>
<div>user 2 content</div>
<div>user 3 content</div>
<div>user 4 content</div>...
</div>
then all are displayed this way:
1 2 3
4 5 6
7 8 9
10 11 12
13 14 15
...... and so on
divs numbers 1,4,7,10.. should have a class called class_left for instance, divs numbers 2,5,8,11,14.. should have a class called class_center and divs numbers 3,6,9,12,15... should have a class called class_right
I am not quite sure how to do it. Thank you.