B站视频嵌入网站博客文章自适应代码

在个人网站发布编辑文章时，如需要嵌入B站视频，但复制B站给的嵌入代码后会发现宽度和高度属性都没有，无法自适应div，单独设置宽度和高度也不太完美，如何解决这个问题？

这段代码可以使嵌入文章的B站视频自适应div的宽度

<iframe id="spkj" src="https://player.bilibili.com/player.html?aid=视频AID替换&bvid=BV1VN4y1K76x&cid=视频CID替换&page=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width=100% sandbox="allow-top-navigation allow-same-origin allow-forms allow-scripts"> </iframe>
<script type="text/javascript">  
document.getElementById("spkj").style.height=document.getElementById("spkj").scrollWidth*0.76+"px";
</script>
<iframe id="spkj" src="https://player.bilibili.com/player.html?aid=视频AID替换&bvid=BV1VN4y1K76x&cid=视频CID替换&page=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width=100% sandbox="allow-top-navigation allow-same-origin allow-forms allow-scripts"> </iframe>
<script type="text/javascript">  
document.getElementById("spkj").style.height=document.getElementById("spkj").scrollWidth*0.76+"px";
</script>
<iframe id="spkj" src="https://player.bilibili.com/player.html?aid=视频AID替换&bvid=BV1VN4y1K76x&cid=视频CID替换&page=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width=100% sandbox="allow-top-navigation allow-same-origin allow-forms allow-scripts"> </iframe>
<script type="text/javascript">  
document.getElementById("spkj").style.height=document.getElementById("spkj").scrollWidth*0.76+"px";
</script>

如果想让点击的弹出链接失效，避免外链跳出本站，如果不需要这个效果，删掉这段代码即可。

sandbox="allow-top-navigation allow-same-origin allow-forms allow-scripts"
sandbox="allow-top-navigation allow-same-origin allow-forms allow-scripts"
sandbox="allow-top-navigation allow-same-origin allow-forms allow-scripts"