Shrinks CSS files using cssshrink
Note: It seems like cssshrink is dead (no commits since 2014-07-07 and 20 open issues). You should probably use something like cssnano instead
npm install gulp-cssshrink --save-dev
var gulp = require('gulp');
var cssshrink = require('gulp-cssshrink');
gulp.task('default', function() {
gulp.src('css/**/*.css')
.pipe(cssshrink())
.pipe(gulp.dest('dist/css/'));
});