Merge branch 'kenrick95-gulp-postcss'

gulpfile.js

@@ -64,9 +64,15 @@ function getVendorJS() {
 }
 
 function compileCSS() {
-  var cleanCSS = require('gulp-clean-css');
+  var postcss = require('gulp-postcss');
+  var cssnext = require('postcss-cssnext');
+  var cssnano = require('cssnano');
+  var plugins = [
+    cssnext({browsers: ['last 2 versions']}),
+    cssnano()
+  ];
   return gulp.src(PATH_CSS)
-    .pipe(cleanCSS())
+    .pipe(postcss(plugins))
     .pipe(gulp.dest(DIR_DIST));
 }
 

package.json

@@ -29,10 +29,12 @@
   },
   "devDependencies": {
     "@types/node": "7.0.29",
-    "gulp-clean-css": "^3.4.1",
+    "cssnano": "^3.10.0",
     "gulp-nodemon": "2.2.1",
+    "gulp-postcss": "^7.0.0",
     "gulp-typescript": "^3.1.6",
-    "typescript": "^2.3.4",
-    "mysql": "2.13.0"
+    "mysql": "2.13.0",
+    "postcss-cssnext": "^3.0.2",
+    "typescript": "^2.3.4"
   }
 }