JSFiddle - React, Tailwind, and code Playground

HTML

<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Clipboard Exporter</title>
  <style>
/*body{
  font-family:Arial,sans-serif;
  padding:20px;
}
#output{
  margin-top:20px;
}
.item{
  margin:5px 0;
  cursor:pointer;
}
.remove-button{
  margin-left:10px;
  color:red;
  cursor:pointer;
}*/

body{
  font-family:Arial,sans-serif;
  padding:20px;
  background-color:#f4f4f4;
  color:#333;
}
h1{
  text-align:center;
  color:#4CAF50;
}
textarea{
  width:100%;
  padding:10px;
  border:1px solid #ccc;
  border-radius:5px;
  box-shadow:0 2px 5px rgba(0,0,0,0.1);
}
label{
  margin-top:4px;
  display:block;
  font-size:14px;
  padding:2px;
}
input[type="checkbox"]{
  margin:0;padding:0;
  width:16px;height:16px;
}
br{line-height:0;margin:0;}
button{
  background-color:#4CAF50;
  color:white;
  border:none;
  padding:4px 4px;
  border-radius:4px;
  cursor:pointer;
  margin:2px 0;
  transition:background-color 0.3s;
  font-size:16px;
}
button:hover{
  background-color:#45a049;
}
#output{
  margin-top:20px;
  background-color:white;
  padding:10px;
  border-radius:5px;
  box-shadow:0 2px 5px rgba(0,0,0,0.1);
}
.item{
  margin:5px 0;
  cursor:pointer;
  padding:5px;
  border-bottom:1px solid #eee;
}
.item:hover{
  background-color:#f9f9f9;
}
.remove-button{
  margin-left:10px;
  color:red;
  cursor:pointer;
}
.remove-button:hover{
  text-decoration:underline;
}
#itemCount{
  font-weight:bold;
  margin-top:10px;
}
  </style>
</head>
<body>
<h1>Clipboard Exporter</h1>
<textarea id="inputText" rows="4" cols="50" placeholder="Paste your text here…"></textarea><br>
<label for="autoAddCheckbox">
  <input type="checkbox" id="autoAddCheckbox">
  Automatically add pasted texts
</label><br>
<label for="trimCheckbox">
  <input type="checkbox" id="trimCheckbox" checked>
  Trim leading and trailing spaces from input?
</label><br>
<button id="addButton">Add Text</button>
<button id="clearButton">Clear...