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              .main-container.fixed-width
	.row
		%h1.span-12
			12 Column Calc() Responsive Grid
			%small (Incomplete)
	.row
		%p.span-8
			This is a responsive grid that uses 
			%code calc()
			(CSS3 Function) to set the widths of the sections for supporting browsers. 
			%a{:href => "http://caniuse.com/#feat=calc", :title => "Can I Use Calc() as CSS unit value"} Non-supporting browsers 
			(Opera, Android Browser, <abbr title="Internet Explorer 8">IE8</abbr> on down) will get a fallback stylesheet (Opera and Android Browser through a Modernizr test or a conditional CSS class "<code>no-csscalc</code>", <abbr title="Internet Explorer 8">IE8</abbr> on down through 
			%a{:href => "http://css-tricks.com/how-to-create-an-ie-only-stylesheet/", :title => "How To Create an IE-Only Stylesheet"} Conditional Comments
			) with percentage widths (and <code>DHTML</code> expression widths for <abbr title="Internet Explorer 7">IE7</abbr>).
.main-container
	.row
		.span-12
			.width-unit
	.row
		.span-1
			.width-unit
		.span-11
			.width-unit
	.row
		.span-2
			.width-unit
		.span-10
			.width-unit
	.row
		.span-3
			.width-unit
		.span-9
			.width-unit
	.row
		.span-4
			.width-unit
		.span-8
			.width-unit
	.row
		.span-5
			.width-unit
		.span-7
			.width-unit
	.row
		.span-6
			.width-unit
		.span-6
			.width-unit
	.row
		.span-1.suffix-11
			.width-unit
	.row
		.span-1.prefix-1.suffix-10
			.width-unit
	.row
		.span-1.prefix-2.suffix-9
			.width-unit
	.row
		.span-1.prefix-3.suffix-8
			.width-unit
	.row
		.span-1.prefix-4.suffix-7
			.width-unit
	.row
		.span-1.prefix-5.suffix-6
			.width-unit
	.row
		.span-1.prefix-6.suffix-5
			.width-unit
	.row
		.span-1.prefix-7.suffix-4
			.width-unit
	.row
		.span-1.prefix-8.suffix-3
			.width-unit
	.row
		.span-1.prefix-9.suffix-2
			.width-unit
	.row
		.span-1.prefix-10.suffix-1
			.width-unit
	.row
		.span-1.prefix-11
			.width-unit
	.row
		.span-6
			.row
				.span-6
					.width-unit
				.span-6
					.width-unit
		.span-6
			.row
				.span-4
					.width-unit
				.span-4
					.width-unit
				.span-4
					.width-unit
	.underlay
		.row
			- (1..12).each do
				.span-1
					%div
            
          
!
            
              @import "compass/css3";

/* SCSS Variables */
$siteWidth: 960px;
$gutterWidth: 20px;
$halfGutterWidth: ($gutterWidth/2);

/* Core Grid */
.main-container {
    margin: 0 auto;
    width: $siteWidth;
}
.row {
    clear: both;
    margin-left: -$halfGutterWidth; /* In this case 10px */
    width: $siteWidth;
    .row {
        margin-left: -$gutterWidth; /* In this case 20px */
        width: auto;
    }
    &:before,
    &:after {
        content: "";
        display: table;
    }
    &:after {
        clear: both;
    }
}
[class*="span-"] { /* I included prefixed versions on box sizing because Prefixer takes a second to load and didn't feel like putting the JS script for the width detection in a document load function */
    -webkit-box-sizing: border-box;
       -moz-box-sizing: border-box;
            box-sizing: border-box;
    float: left;
    margin: 0;
    padding-left: $gutterWidth; /* In this case 20px */
}
.span-1  { width: calc(100% / 12); }
.span-2  { width: calc(100% / 12 *  2); }
.span-3  { width: calc(100% / 12 *  3); }
.span-4  { width: calc(100% / 12 *  4); }
.span-5  { width: calc(100% / 12 *  5); }
.span-6  { width: calc(100% / 12 *  6); }
.span-7  { width: calc(100% / 12 *  7); }
.span-8  { width: calc(100% / 12 *  8); }
.span-9  { width: calc(100% / 12 *  9); }
.span-10 { width: calc(100% / 12 * 10); }
.span-11 { width: calc(100% / 12 * 11); }
.span-12 { width: calc(100%); }

.suffix-1  { margin-right: calc(100% / 12 *  1); }
.suffix-2  { margin-right: calc(100% / 12 *  2); }
.suffix-3  { margin-right: calc(100% / 12 *  3); }
.suffix-4  { margin-right: calc(100% / 12 *  4); }
.suffix-5  { margin-right: calc(100% / 12 *  5); }
.suffix-6  { margin-right: calc(100% / 12 *  6); }
.suffix-7  { margin-right: calc(100% / 12 *  7); }
.suffix-8  { margin-right: calc(100% / 12 *  8); }
.suffix-9  { margin-right: calc(100% / 12 *  9); }
.suffix-10 { margin-right: calc(100% / 12 * 10); }
.suffix-11 { margin-right: calc(100% / 12 * 11); }

.prefix-1  { margin-left: calc(100% / 12 *  1); }
.prefix-2  { margin-left: calc(100% / 12 *  2); }
.prefix-3  { margin-left: calc(100% / 12 *  3); }
.prefix-4  { margin-left: calc(100% / 12 *  4); }
.prefix-5  { margin-left: calc(100% / 12 *  5); }
.prefix-6  { margin-left: calc(100% / 12 *  6); }
.prefix-7  { margin-left: calc(100% / 12 *  7); }
.prefix-8  { margin-left: calc(100% / 12 *  8); }
.prefix-9  { margin-left: calc(100% / 12 *  9); }
.prefix-10 { margin-left: calc(100% / 12 * 10); }
.prefix-11 { margin-left: calc(100% / 12 * 11); }

[class*="push_"],
[class*="pull_"] {
  position: relative;
}
.push-1  { left: calc(100% / 12 *  1); }
.push-2  { left: calc(100% / 12 *  2); }
.push-3  { left: calc(100% / 12 *  3); }
.push-4  { left: calc(100% / 12 *  4); }
.push-5  { left: calc(100% / 12 *  5); }
.push-6  { left: calc(100% / 12 *  6); }
.push-7  { left: calc(100% / 12 *  7); }
.push-8  { left: calc(100% / 12 *  8); }
.push-9  { left: calc(100% / 12 *  9); }
.push-10 { left: calc(100% / 12 * 10); }
.push-11 { left: calc(100% / 12 * 11); }

.pull-1  { left: calc(100% / 12 *  1 * -1); }
.pull-2  { left: calc(100% / 12 *  2 * -1); }
.pull-3  { left: calc(100% / 12 *  3 * -1); }
.pull-4  { left: calc(100% / 12 *  4 * -1); }
.pull-5  { left: calc(100% / 12 *  5 * -1); }
.pull-6  { left: calc(100% / 12 *  6 * -1); }
.pull-7  { left: calc(100% / 12 *  7 * -1); }
.pull-8  { left: calc(100% / 12 *  8 * -1); }
.pull-9  { left: calc(100% / 12 *  9 * -1); }
.pull-10 { left: calc(100% / 12 * 10 * -1); }
.pull-11 { left: calc(100% / 12 * 11 * -1); }


/* Visual Styling */
.main-container {
    box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.4);
    position: relative;
}
.row {
    margin-bottom: 16px;
    margin-top: 16px;
    .row {
        background-color: transparent;
        margin-bottom: 0;
        margin-top: 0;
    }
}
[class*="span-"] .width-unit {
    background-color: rgba(255, 255, 255, 0.7);
    height: 40px;
    line-height: 40px;
    text-align: center;
}

/* Responsive Underlay Styling */
.underlay {
    background-color: green;
    left: 0;
    min-height: 100%;
    position: absolute;
    top: 0;
    width: calc(#{$siteWidth});
    z-index: -1;
    .row {
        margin-bottom: 0;
        margin-top: 0;
    }
}
.underlay [class*="span-"] div {
    background-color: rgba(0, 0, 0, 0.2);
}


/* This for the description at top */
.main-container.fixed-width {
    box-shadow: none;
    width: 980px;
}
            
          
!
            
              /* Modernizr 2.6.2 (Custom Build) | MIT & BSD
 * Build: http://modernizr.com/download/#-fontface-backgroundsize-borderimage-borderradius-boxshadow-flexbox-flexboxlegacy-hsla-multiplebgs-opacity-rgba-textshadow-cssanimations-csscolumns-generatedcontent-cssgradients-cssreflections-csstransforms-csstransforms3d-csstransitions-applicationcache-canvas-canvastext-draganddrop-hashchange-history-audio-video-indexeddb-input-inputtypes-localstorage-postmessage-sessionstorage-websockets-websqldatabase-webworkers-geolocation-inlinesvg-smil-svg-svgclippaths-touch-webgl-shiv-cssclasses-teststyles-testprop-testallprops-hasevent-prefixes-domprefixes-css_calc-load
 */
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!
999px
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