JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<script
  src="https://code.jquery.com/jquery-3.5.1.js"
  integrity="sha256-QWo7LDvxbWT2tbbQ97B53yJnYU3WhH/C8ycbRAkjPDc="
  crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" integrity="sha384-wvfXpqpZZVQGK6TAh5PVlGOfQNHSoD2xbE+QkPxCAFlNEevoEH3Sl0sibVcOQVnN" crossorigin="anonymous">
<head>
    <link rel="shortcut icon" href="/favicon.png" type="image/x-icon">
    <title>My Todo With Local Storage</title>
    <style type="text/css">
        body
        {
            overflow-y: scroll; overflow-x:hidden;
            margin:0;
            padding:0;
        }
        span
        {
            font-size: 22px;
            padding-right: 5px;
            color: #FFF;
        }
        /* Animation property */
       .button_animate {
         animation: wiggle 2s linear;
       }
       #myButton:focus {outline:0;}
       
       /* Keyframes */
       @keyframes wiggle {
         0%, 7% {
           transform: rotateZ(0);
         }
         15% {
           transform: rotateZ(-7deg);
         }
         20% {
           transform: rotateZ(5deg);
         }
         25% {
           transform: rotateZ(-5deg);
         }
         30% {
           transform: rotateZ(3deg);
         }
         35% {
           transform: rotateZ(-1deg);
         }
         40%, 100% {
           transform: rotateZ(0);
         }
       }     
       
       
       #myButton {         
         height: 4em;
         width: 305px;
         background: #0F2027;  /* fallback for old browsers */
         background: -webkit-linear-gradient(to right, #2C5364, #203A43, #0F2027);  /* Chrome 10-25, Safari 5.1-6 */
         background: linear-gradient(to right, #2C5364, #203A43, #0F2027); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+,...