gistfile1.css

.grid {
	margin: 0 auto;
	width: 960px;
}

.grid [class^="_"] { /* my columns start with "_", _1, _2, ... */
	display: inline;
	float: left;
}

.grid [class^="_"].void {
	display: block;
}

.grid [class^="_"] > .gutter {
	margin: 0 10px;
}

.grid [class^="_"] > .gutter.alpha {
	margin-left: 0;
}

.grid [class^="_"] > .gutter.omega {
	margin-right: 0;
}

.grid ._1 {
	width: 25%;
}

.grid ._2 {
	width: 50%;
}

.grid ._3 {
	width: 75%;
}

.grid ._4 {
	width: 100%;
}