CSS rework et autres améliorations

gulpfile.js

@@ -1,25 +1,17 @@
 var gulp = require('gulp');
-
+var less = require('gulp-less');
 var postcss = require('gulp-postcss');
-
 var autoprefixer = require('autoprefixer');
-var cssnext = require('postcss-preset-env');
-var precss = require('precss');
 
 gulp.task('css', function () {
-
-  var processors = [
-    autoprefixer,
-    cssnext,
-    precss
-  ];
-
-  return gulp.src('./postcss/*.css')
-    .pipe(postcss(processors))
+  return gulp.src('./less/*.less')
+    .pipe(less())
+    .pipe(postcss([autoprefixer]))
     .pipe(gulp.dest('./styles'));
 });
 
+gulp.task('watch', function () {
+  gulp.watch('./less/*.less', gulp.series('css'));
+});
 
-function watchUpdates() {
-  gulp.watch('./postcss/*.css', css);
-}
+gulp.task('default', gulp.series('css'));