I used the following code on my own site.
HTML:
<footer>
<aside class="footer-left">
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
</aside>
<aside class="footer-right">
Aenean elit ante, ultrices ac vestibulum id, tempor id nisi.
</aside>
<aside class="footer-center">
Integer tincidunt, sem at placerat ullamcorper, urna felis condimentum justo.
</aside>
</footer>
CSS:
footer [class ^= 'footer-'] {
width: 33.3333%;
display: inline-block;
text-align: center;
}
footer .footer-left {
float: left;
}
footer .footer-right {
float: right;
}
All content will be center-aligned because that's what I wanted. You can easily change this, though.