/*
http://www.responsivegridsystem.com/calculator/

 .section

splits up the page horizontally. You'll need a few of these to break up the content, and you can use them in your main wrapper, or within other divs.
.col

divides the section into columns. Each column has a left margin except the first one. Using .col:first-child { margin-left: 0; } means you don't need to use class="last" anywhere. It works in all browsers since IE6.
.group

solves floating problems, by forcing the section to self clear its children (aka the clearfix hack). This is good in Firefox 3.5+, Safari 4+, Chrome, Opera 9+ and IE 6+.
.span_1_of_3

specifies the width of the column. Using percentages means it's 100% fluid.
@media queries

as soon as the screen size gets less than 480 pixels the columns stack and the margins disappear.

*/

/*  SECTIONS  */
.section {
	clear: both;
	padding: 0px;
	margin: 0px;
}

/*  COLUMN SETUP  */
.col {
	display: block;
	float:left;
	margin: 0% 0 0% 0%;
}
.col:first-child { margin-left: 0; }

/*  GROUPING  */
.group:before,
.group:after { content:""; display:table; }
.group:after { clear:both;}
.group { zoom:1; /* For IE 6/7 */ }

/*  GRID OF TWELVE  */
.span_12_of_12 {
	width: 100%;
}

.span_11_of_12 {
  	width: 91.66%;
}
.span_10_of_12 {
  	width: 83.33%;
}

.span_9_of_12 {
  	width: 75%;
}

.span_8_of_12 {
  	width: 66.66%;
}

.span_7_of_12 {
  	width: 58.33%;
}

.span_6_of_12 {
  	width: 50%;
}

.span_5_of_12 {
  	width: 41.66%;
}

.span_4_of_12 {
  	width: 33.33%;
}

.span_3_of_12 {
  	width: 25%;
}

.span_2_of_12 {
  	width: 16.66%;
}

.span_1_of_12 {
  	width: 8.333%;
}

/*  GO FULL WIDTH BELOW 480 PIXELS */
@media screen and (max-width: 480px) {
	.col {  margin: 1% 0 1% 0%; }
    
    .span_1_of_12, .span_2_of_12, .span_3_of_12, .span_4_of_12, .span_5_of_12, .span_6_of_12, .span_7_of_12, .span_8_of_12, .span_9_of_12, .span_10_of_12, .span_11_of_12, .span_12_of_12 {
	width: 100%; 
	}
}