JSFiddle - React, Tailwind, and code Playground

HTML

<body>
  <p>
    <a href="http://www.zfanw.com/blog/">陈三</a>
  </p>
</body>

JavaScript

document.body.addEventListener("click",function(){alert("you click body")},false);
document.getElementsByTagName("p")[0].addEventListener("click",function(){alert("you click p");window.event.cancelBubble = true;},true);
document.getElementsByTagName("a")[0].addEventListener("click",function(e){alert("you click a");e.preventDefault(e);},true);