/*
840px grid system ~ Core CSS.
12 Columns ~ Margin left: 10px ~ Margin right: 10px

Based on the 960.gs grid system - http://960.gs/
by Nathan Smith

Created by the Grid System Generator - v1.04
Learn more ~ http://www.gridsystemgenerator.com/
*/

/*
Forces backgrounds to span full width,
even if there is horizontal scrolling.
Increase this if your layout is wider.

Note: IE6 works fine without this fix.
*/
body {
        min-width: 960px;
}

/* =Containers
--------------------------------------------------------------------------------*/
.container_12
{
        height: 100%;
}
.layout {
    width: 840px;
    margin: 0 auto;
}

/* =Grid >> Global
--------------------------------------------------------------------------------*/
.grid_1,
.grid_2,
.grid_3,
.grid_4,
.grid_5,
.grid_6,
.grid_7,
.grid_8,
.grid_9,
.grid_10,
.grid_11,
.grid_12 {
        display: inline;
        float: left;
        margin-left: 10px;
        margin-right: 10px;
}

.push_1, .pull_1,
.push_2, .pull_2,
.push_3, .pull_3,
.push_4, .pull_4,
.push_5, .pull_5,
.push_6, .pull_6,
.push_7, .pull_7,
.push_8, .pull_8,
.push_9, .pull_9,
.push_10, .pull_10,
.push_11, .pull_11 {
        position: relative;
}

/* =Grid >> Children (Alpha ~ First, Omega ~ Last)
--------------------------------------------------------------------------------*/
.alpha {margin-left: 0;}
.omega {margin-right: 0;}

/* =Grid >> 12 Columns
--------------------------------------------------------------------------------*/
.container_12 .grid_1 {width: 50px;}
.container_12 .grid_2 {width: 120px;}
.container_12 .grid_3 {width: 190px;}
.container_12 .grid_4 {width: 260px;}
.container_12 .grid_5 {width: 330px;}
.container_12 .grid_6 {width: 400px;}
.container_12 .grid_7 {width: 470px;}
.container_12 .grid_8 {width: 540px;}
.container_12 .grid_9 {width: 610px;}
.container_12 .grid_10 {width: 680px;}
.container_12 .grid_11 {width: 750px;}
.container_12 .grid_12 {width: 820px;}

/* =Prefix Extra Space >> 12 Columns
--------------------------------------------------------------------------------*/
.container_12 .prefix_1 {padding-left: 70px;}
.container_12 .prefix_2 {padding-left: 140px;}
.container_12 .prefix_3 {padding-left: 210px;}
.container_12 .prefix_4 {padding-left: 280px;}
.container_12 .prefix_5 {padding-left: 350px;}
.container_12 .prefix_6 {padding-left: 420px;}
.container_12 .prefix_7 {padding-left: 490px;}
.container_12 .prefix_8 {padding-left: 560px;}
.container_12 .prefix_9 {padding-left: 630px;}
.container_12 .prefix_10 {padding-left: 700px;}
.container_12 .prefix_11 {padding-left: 770px;}

/* =Suffix Extra Space >> 12 Columns
--------------------------------------------------------------------------------*/
.container_12 .suffix_1 {padding-right: 70px;}
.container_12 .suffix_2 {padding-right: 140px;}
.container_12 .suffix_3 {padding-right: 210px;}
.container_12 .suffix_4 {padding-right: 280px;}
.container_12 .suffix_5 {padding-right: 350px;}
.container_12 .suffix_6 {padding-right: 420px;}
.container_12 .suffix_7 {padding-right: 490px;}
.container_12 .suffix_8 {padding-right: 560px;}
.container_12 .suffix_9 {padding-right: 630px;}
.container_12 .suffix_10 {padding-right: 700px;}
.container_12 .suffix_11 {padding-right: 770px;}

/* `Push Space >> 12 Columns
--------------------------------------------------------------------------------*/
.container_12 .push_1 {left: 70px;}
.container_12 .push_2 {left: 140px;}
.container_12 .push_3 {left: 210px;}
.container_12 .push_4 {left: 280px;}
.container_12 .push_5 {left: 350px;}
.container_12 .push_6 {left: 420px;}
.container_12 .push_7 {left: 490px;}
.container_12 .push_8 {left: 560px;}
.container_12 .push_9 {left: 630px;}
.container_12 .push_10 {left: 700px;}
.container_12 .push_11 {left: 770px;}

/* `Pull Space >> 12 Columns
--------------------------------------------------------------------------------*/
.container_12 .pull_1 {left: -70px;}
.container_12 .pull_2 {left: -140px;}
.container_12 .pull_3 {left: -210px;}
.container_12 .pull_4 {left: -280px;}
.container_12 .pull_5 {left: -350px;}
.container_12 .pull_6 {left: -420px;}
.container_12 .pull_7 {left: -490px;}
.container_12 .pull_8 {left: -560px;}
.container_12 .pull_9 {left: -630px;}
.container_12 .pull_10 {left: -700px;}
.container_12 .pull_11 {left: -770px;}

/* `Clear Floated Elements
----------------------------------------------------------------------------------------------------*/
/* http://sonspring.com/journal/clearing-floats */
.clear {
        clear: both;
        display: block;
        overflow: hidden;
        visibility: hidden;
        width: 0;
        height: 0;
}

/* http://www.yuiblog.com/blog/2010/09/27/clearfix-reloaded-overflowhidden-demystified */
.clearfix:before,
.clearfix:after {
        content: "\0020";
        display: block;
        overflow: hidden;
        visibility: hidden;
        width: 0;
        height: 0;
}
.clearfix:after {
        clear: both;
}
/*
The following zoom:1 rule is specifically for IE6 + IE7.
Move to separate stylesheet if invalid CSS is a problem.
*/
.clearfix {
        zoom: 1;
}
- See more at: http://www.gridsystemgenerator.com/gs01.php?GridWidth=840&GridColumns=12&GridMarginLeft=10&GridMarginRight=10&sc=1#sthash.GEwyOXP0.dpuf