jQuery for .each()
A simple .each() function to demonstrate what a simple example with the incremented index values.
HTML
<ul>
<li>Lorem</li>
<li>Ipsum</li>
<ul>
<li>Sit</li>
<ul>
<li>xyx</li>
</ul>
</ul>
<li>Dolor</li>
</ul>
CSS
.item-0 { color: red }
.item-1 { color: green }
.item-2 { color: orange }
.item-4 { color: blue }
JavaScript
$('li').each( function( index ) {
$(this).addClass('item-' + index);
});