Add autoprefixer

gulpfile.js

@@ -1,11 +1,16 @@
-const gulp        = require('gulp');
-const browserSync = require('browser-sync').create();
-const sass        = require('gulp-sass');
+const gulp         = require('gulp');
+const browserSync  = require('browser-sync').create();
+const sass         = require('gulp-sass');
+const autoprefixer = require('gulp-autoprefixer');
 
 // Compile Sass & Inject Into Browser
 gulp.task('sass', function() {
     return gulp.src(['src/scss/*.scss'])
         .pipe(sass())
+        .pipe(autoprefixer({
+            browsers: ['last 2 versions'],
+            cascade: false
+        }))
         .pipe(gulp.dest("src/css"))
         .pipe(browserSync.stream());
 });

package.json

@@ -11,6 +11,7 @@
   "devDependencies": {
     "browser-sync": "^2.18.13",
     "gulp": "^3.9.1",
+    "gulp-autoprefixer": "^5.0.0",
     "gulp-sass": "^3.1.0"
   }
 }