fix dropdown issue, add autoprefix for scss

package.json

@@ -1,7 +1,7 @@
 {
   "name": "ui-lib",
   "private": true,
-  "version": "0.0.0",
+  "version": "0.0.1",
   "type": "module",
   "files": [
     "dist"
@@ -16,11 +16,17 @@
       "require": "./dist/utility.min.js"
     }
   },
+  "browserslist": [
+    "last 1 versions",
+    "> 1%"
+  ],
   "scripts": {
     "dev": "vite",
     "build": "node ./vite.build.js"
   },
   "devDependencies": {
+    "postcss-preset-env": "^8.2.0",
+    "sass": "^1.60.0",
     "vite": "^4.0.4"
   }
 }