Simple grid is a simple postcss plugin that will help you create a grid system with minimal settings. There is no need to specify every single column any more.

Installation

$ npm install postcss-simple-grid

Usage

Setting up with gulp:

var postcss = require('postcss');
var simpleGrid = require('postcss-simple-grid');
gulp.task('css', function(){
	var processors = [
		simpleGrid(separator: '--')
	];
	gulp.src(src + './*.css')
		.pipe(postcss(processors))
		.pipe(gulp.dest(root + './'))
});

HTML examples

<!-- keep width for all viewport sizes -->
<div class="row">
	<div class="column small--1">column 1</div>
	<div class="column small--1">column 2</div>
	...
	<div class="column small--1">column 12</div>
</div>
<!-- keep width for specified with media query viewport size -->
<div class="row">
	<div class="column medium--1">column 1</div>
	<div class="column medium--1">column 2</div>
	...
	<div class="column medium--1">column 12</div>
</div>

Row

Use create-row: 1320px; to create a grid wrapper, where 1320px is the grid wrapper's max-width.

.row {
	create-row: 1320px;
}

will compile to:

.row {
	display: block;
	margin: 0 auto;
	max-width: 1320px;
	position: relative;
	width: 100%;
}
.row:before,
.row:after {
	content: " ";
	display: table;
}
.row:after {
	clear: both;
}

Column

Use create-column: 40px; to create a grid column, where 40px is the column gutter (padding).

.column {
	create-column: 40px;
}

will compile to:

.column {
	float: left;
	padding: 0 20px;
	position: relative;
	width: 100%;
}

Grid

Use create-grid: 12; to create grid columns, where 12 is the number of columns.

.small {
	create-grid: 12;
}
/* Use unique class name for media queries for example: */
@media screen and (max-width: 640px;) {
	.medium {
		create-grid: 12;
	}
}

will compile to:

.small--1 {
	width: 8.33333%;
}
.small--2 {
	width: 16.66667%;
}
...
.small--12 {
	width: 100%;
}
@media screen and (min-width: 640px) {
	.medium--1 {
		width: 8.33333%;
	}
	.medium--2 {
		width: 16.66667%;
	}
	...
	.medium--12 {
		width: 100%;
	}
}

Offset

Use create-offset: 12; to create offset columns, where 12 is number of offset columns.

.offset{
	create-offset: 12;
}

will compile to:

.offset--0 {
	margin-left: 0%;
}
.offset--1 {
	margin-left: 8.33333%;
}
...
.offset--11 {
	margin-left: 91.66667%;
}

Push/Pull

Use create-push: 12; to create push columns, where 12 is number of push columns.

.push {
	create-push: 12;
}

will compile to:

.push--0 {
	left: 0%;
	right: auto;
}
.push--1 {
	left: 8.33333%;
	right: auto;
}
...
.push--11 {
	left: 91.66667%;
	right: auto;
}

Use create-pull: 12; to create pull columns, where 12 is number of pull columns.

.pull {
	create-pull: 12;
}

will compile to:

.pull--0 {
	left: auto;
	right: 0%;
}
.pull--1 {
	left: auto;
	right: 8.33333%;
}
...
.pull--11 {
	left: auto;
	right: 91.66667%;
}

It just can't be easier!