A semantic and fluid grid framework on top of PostCSS
PostCSS-Neat is a fluid grid framework built with the aim of being easy enough to use out of the box and flexible enough to customize down the road.
Using PostCSS-Neat
Usage:
postcss([ require('postcss-neat')(/* { options } */) ])
There is a gulp usage:
var gulp = require('gulp'); gulp .task('css', function () { var processors = [ require('autoprefixer-core')({ browsers: ['last 1 version'] }), require('postcss-neat')(/* { options } */) ]; return gulp.src('./input/*.css') .pipe(require('gulp-postcss')(processors)) .pipe(gulp.dest('./output/')); }) .task('default', ['css']);
See the demo page for a full list of features.
Let's walk through a simple example. Include the outer-container at-rule in the topmost container (to which the max-width setting will be applied):
.container { @neat-outer-container; }
Then use span-columns on any element to specify the number of columns it should span:
.element { @neat-span-columns 6; }
If the element's parent isn't the top-most container, you need to add the number of columns of the parent element to keep the right proportions:
.container { @neat-outer-container; .parent-element { @neat-span-columns 8; .element { @neat-span-columns 6 8; } } }
To make your layout responsive, use the postcss-media-minmax media queries functionality to modify both the grid and the layout:
.container { @neat-span-columns 4; @media (width >= 768px) { @neat-span-columns 2; } }
To help debug your layouts there is a show-grid at-rule, note that it should be used in conjunction with outer-container:
.container { @neat-outer-container; @neat-show-grid; /* defaults to 1 12 */ }
The result you get by using show-grid at-rule is shown below:

The third parameter of show-grid at-rule controls the location of where the grid will be applied to. The allowed values are before, after (default value) or background:
.container { @neat-outer-container; @neat-show-grid 4 12 background; }
Custom settings
If you are planning to override the default grid settings (12 columns, and etc.), set variables you want to override in options that you pass to PostCSS-neat call:
postcss([ require('postcss-neat')({ neatMaxWidth: '128em' }) ])
There is a list of all available variables:
neatDefaultDisplay, sets the default display mode. Can beblock,tableorblock-collapse. Default isblock.neatDefaultDirection, sets the default layout direction of the grid. Can beLTRorRTL. Default isLTR.neatGridColumns, sets the total number of columns in the grid. Default is12.neatColumnWidth, sets the relative width of a single grid column. Default is4.235801032000001em.neatGutterWidth, sets the relative width of a single grid gutter. Default is1.618em.neatMaxWidth, sets the max-width property of the element that includesouter-container. Default is64em.debugGridColor, sets the background color for the debugging grid. Default is#ecf0f1.debugGridLocation, sets the default location of the debugging grid. Default isafter.
PostCSS-Neat v1
Second version of PostCSS-Neat introduced breaking changes. Here is old documentation if you're still using PostCSS-Neat version 1.X.X.
Credits
PostCSS-Neat is created and maintained by Alexandr Marinenko. The project is heavily inspired by amazing Sass framework Bourbon Neat. Tweet your questions or suggestions to @jo_asakura.
License
Copyright © 2015 Alexandr Marinenko. PostCSS-Neat is free software, and may be redistributed under the terms specified in the license.