GRID POSITIONS

You can have multiple combinations on each row, there can be maximum 12 columns, each of 60px. Please read more on www.960.gs .

If a row has this structure:

<div class="row">
    <div class="grid_3 alpha"><!-- content --></div>
    <div class="grid_3"><!-- content --></div>
    <div class="grid_3"><!-- content --></div>
    <div class="grid_3 omega"><!-- content --></div>
</div>

As you can see the first and last grid have the "alpha" meaning first (eliminates left margin) and "omega" meaning last (eliminating right margin).