这篇文章最后修改于 2022-06-23 日，距今已有 270 天，请注意甄别内容是否已经过时！

针对b站视频插入后无法播放/窗口小/不美观适应

<iframe id="spkj" src="//player.bilibili.com/player.html?aid=886677146&bvid=BV12K4y1n74k&cid=297648780&page=1" width="100%" frameborder="no" scrolling="no" allowfullscreen="allowfullscreen"> <span data-mce-type="bookmark" style="display: inline-block; width: 0px; overflow: hidden; line-height: 0;" class="mce_SELRES_start"></span> </iframe> <script type="text/javascript"> document.getElementById("spkj").style.height=document.getElementById("spkj").scrollWidth*0.76+"px"; </script>
找到第一行的
src="//player.bilibili.com/player.html?aid=886677146&bvid=BV12K4y1n74k&cid=297648780&page=1"

复制b站的嵌入代码：
<iframe src="//player.bilibili.com/player.html?aid=756280384&bvid=BV17r4y1M7uV&cid=288463691&page=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>

将b站这段代码中的src="//player.bilibili.com/player.html?aid=756280384&bvid=BV17r4y1M7uV&cid=288463691&page=1"替换到上面第一行的代码中即可。