Two columns
<div class="one-half first">Column one content.</div>
<div class="one-half">Column two content.</div>
<div class="clear-line"></div>
<div class="one-third first">Column one content.</div>
<div class="two-thirds">Column two content.</div>
<div class="clear-line"></div>
Three columns
<div class="one-third first">Column one content</div>
<div class="one-third">Column two content</div>
<div class="one-third">Column three content</div>
<div class="clear-line"></div>
<div class="one-fourth first">Column one content</div>
<div class="one-half">Column two content</div>
<div class="one-fourth">Column three content</div>
<div class="clear-line"></div>
Four columns
<div class="one-fourth first">Column one content</div>
<div class="one-fourth">Column two content</div>
<div class="one-fourth">Column three content</div>
<div class="one-fourth">Column four content</div>
<div class="clear-line"></div>
Six Columns
<div class="one-sixth first"> <div class="one-sixth">Column two content</div>
<div class="one-sixth">Column three content</div>
<div class="one-sixth">Column four content</div>
<div class="one-sixth">Column five content</div>
<div class="one-sixth">Column six content</div>
<div class="clear-line"></div>