可以使用<iframe>标签插入视频，代码和效果如下所示。
<iframe src="//player.bilibili.com/player.html?isOutside=true&aid=112823891921963&bvid=BV1n281ePEd9&cid=500001622491427&p=1" scrolling="no" frameborder="no" framespacing="0" allowfullscreen="true" width="100%" height="468"></iframe>