// Source - https://stackoverflow.com/a/39551562
// Posted by baao, modified by community. See post 'Timeline' for change history
// Retrieved 2026-06-17, License - CC BY-SA 3.0

var btn = document.getElementById('clickBtn');
btn.addEventListener('click', function(el) {
  var btn1 = document.createElement("button");
  var btn2 = document.createElement("button");
  var span1 = document.createElement("span");
  var span2 = document.createElement("span");
  span1.appendChild(document.createTextNode("btn1"));
  span2.appendChild(document.createTextNode("btn2"));
  btn1.appendChild(span1);
  btn2.appendChild(span2);
  btn1.className = "btn green";
  btn2.className = "btn orange";
  btn1.type = "button";
  btn2.type = "button";
  btn.parentNode.appendChild(btn1);
  btn.parentNode.appendChild(btn2);
  btn.parentNode.removeChild(btn);
}, false)