Grids

gistfile1.sass

@mixin grid($cols: 1, $gutter: 0, $childs: ".item") { 
    width: auto;
    margin-right: -$gutter;
 
    #{$childs} {
        float: left;
        width: (100% / $cols);
 
        padding-right: $gutter;
        background-clip: content-box;
    }
}