--- tags: rwd --- # 4. 斷點規劃 ## 遵循80/20法則，先兼容熱門瀏覽器吧! ![](https://i.imgur.com/vVfd8tO.png) ## mobile first https://codepen.io/tinchen/pen/dyRKGzL ## desk first https://codepen.io/tinchen/pen/gORKrJe ## 斷點設計分享 ![](https://i.imgur.com/dqAtkRL.png)