casprine

          // grid system
.grid-base,
.grid-1,
.grid-2,
.grid-3,
.grid-4,
.grid-5,
.grid-6 {
  display: -webkit-box;
  display: -webkit-flex;

casprine

let
    gulp = require('gulp'),
    concat = require('gulp-concat-css'),
    minify = require('gulp-clean-css'),
    prefix = require('gulp-autoprefixer');

let path = {
    src: './*.css',
    dest: './done/'
}

casprine

$base: 15;

@function em($pixels, $context: $base) {
    @if (unitless($pixels)) {
        $pixels: $pixels * 1px;
    }

    @if (unitless($context)) {
        $context: $context * 1px;
    }