refactor: minify CSS compiled in Pattern Lab's default uikit

Author: bolt-bot

packages/uikit-workshop/gulpfile.js

@@ -3,6 +3,7 @@ const args = require('yargs').argv;
 
 /* load gulp */
 const gulp = require('gulp');
+const cleanCSS = require('gulp-clean-css');
 
 /* load the plugins */
 const gulpLoadPlugins = require('gulp-load-plugins');
@@ -76,6 +77,13 @@ gulp.task('build:css', function() {
         { map: false }
       )
     )
+    .pipe(
+      cleanCSS({
+        compatibility: 'ie9',
+        level: 1,
+        inline: ['remote'],
+      })
+    )
     .pipe(gulp.dest('dist/styleguide/css'))
     .pipe(copyPublic('styleguide/css'));
 });

packages/uikit-workshop/package.json

@@ -35,6 +35,7 @@
     "gulp-minify-css": "0.3.7",
     "gulp-rename": "1.2.0",
     "gulp-resolve-dependencies": "1.0.1",
+    "gulp-clean-css": "^3.9.4",
     "gulp-sass": "^4.0.1",
     "gulp-uglify": "1.1.0",
     "gulp-util": "3.0.0",