iframe引用YouTube视频 循环播放 自动播放 宽度占满屏幕

版权声明： https://blog.csdn.net/weixin_41728561/article/details/86511832

  <div class="covervid-wrapper two" style="height: auto;"> 
   <iframe id="test" width="100%" height="100%" src="https://www.youtube.com/embed/EMfebeQg2Z4?autoplay=1&loop=1&playlist=EMfebeQg2Z4&muted=1" frameborder="0" allowfullscreen allowtransparency='yes' allow="autoplay"></iframe>
  </div>
<script type="text/javascript">
document.getElementById("test").style.height=document.getElementById("test").scrollWidth*0.60+"px";
</script>