Programs in JavaScript

4. Program to change style of a text at runtime. 
<script>
function chngstyle()
{
	document.getElementById('div1').style.color = "Red"
	document.getElementById('div1').style.backgroundColor = "yellow"
	document.getElementById('div1').style.width = "100"
	document.getElementById('div1').style.height = "100"
}
</script>
<div id="div1">
Welcome to all
</div>
<input type="button" value="Click" onclick="chngstyle()">
Output :

Welcome to all