Text Justification Functionality
With the justify class applied to any element, any inner elements will all have justified text. In Perfect Layout, justify is applied to the same div as contentPadding, applying the style to everything in the #content div area. You can see the effect of this class on every page on this site.
Relevant HTML
<p class="justify">This text will be justified, not just floated left.</p>
Relevant CSS
.justify
{
text-align:justify;
}