JSFiddle - React, Tailwind, and code Playground

by grant

CSS

.alert {
  padding: 15px;
  border: 1px solid #d6e9c6;
  border-radius: 4px;
  color: #3c763d;
  background-color: #dff0d8;
}

JavaScript

let div = document.createElement('div');
  div.className = "alert alert-success";
  div.innerHTML = "<strong>Hi there!</strong> You've read an important message.";

  document.body.appendChild(div);
  
 $(document.body).append(msg());
function msg(msgg){
    var msg= msgg
    return msg;
}
msg('gary');