<p> <span style="color:#18191C;font-family:"font-size:15px;background-color:#FFFFFF;"><strong>CSS中六大选择器在前端开发时候会经常用到，有感兴趣的小伙伴可以看看哈~</strong></span> </p> <p> <span style="color:#18191C;font-family:"font-size:15px;background-color:#FFFFFF;"><strong><br /> </strong></span> </p> <p> <span style="color:#18191C;font-family:"font-size:15px;background-color:#FFFFFF;"><iframe src="//player.bilibili.com/player.html?aid=361882117&bvid=BV1a94y1C7g5&cid=1224227566&page=1" frameborder="no" width="100%" height="500px"> </iframe></span> </p>