<html>
  <head>
    <title>My webpage</title>
  </head>
  <body>
    <h2>Welcome to my HTML tutorial</h2>
    <p>Click the button below to begin</p>
    <button id="btn-1" class="my-btn">CLICK ME</button>
  </body>
</html>
body {
  font-family: monospace;
  padding: 20px;
}

button {
  border: 1px solid black;
  background-color: rgba(0,0,0,0.1);
  padding: 10px;
  font-family: monospace;
  margin-top: 10px;
}

button:hover {
  background-color: white;
  border: 1px solid grey;
  cursor: pointer;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.