<html>
<head>
<style>
button {
background-color: #04AA6D;
border: none;
color: white;
padding: 15px 32px;
font-size: 16px;
cursor: pointer;
}
button:active {
background-color: pink;
}
</style>
</head>
<body>
<h1>Demo of :active</h1>
<p>The :active pseudo-class styles the active button:</p>
<button>Click Me</button>
</body>
</html>