<h2>Welcome to Pizza Shop!</h2>
<button class="btn btn-success btn-lg">Click me!</button>
<h2>Welcome to Pizza Shop!</h2>
<button class="btn btn-success btn-lg" onclick="something()">Click me!</button>

<script type="text/javascript">
	function something()
	{
		alert('Hello!');
	}
</script>
Add onclick JS function for button
Add onclick JS function for button
