c20ad4d76fe97759aa27a0c99bff6710.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Level 11</title>
  <style>
  body{
    background-color: #F5D6C6;
    margin: auto;
    margin-top: 30px;
    width: 60%; 
    padding: 10px;
    text-align: center;
  }

  button{
background-color: #4CAF50;
border: none;
color: white;
padding: 15px 20px;
text-align: center;
margin: 5px 3px;
transition-duration: 0.45s;
  }
  button:hover{
      box-shadow: 0 12px 16px 0 rgba(0,0,0,0.24),0 17px 50px 0 rgba(0,0,0,0.19);
  }
  </style>
</head>
<body>
  <p id="demo"></p>
  <button id="btn" onclick="onClick()"> Click me!</button>
<script src="12.js"></script>
</body>
</html>