Ariful Islam Shaon aishaon

## externalcss.css
h2{
    font-size: 30px;
    color: green;
    background: yellow;
    padding: 10px 25px;
    margin-top: 100px;
}
p{
	text-align: center;
	color: red;

## cssintro.html
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>

	<!-- Internal CSS
	<style>
		h2{
		    font-size: 30px;
	h2{
	font-size: 30px;
	color: green;
	background: yellow;
	padding: 10px 25px;
	margin-top: 100px;
	}
	p{
	text-align: center;
	color: red;
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>Document</title>

	<!-- Internal CSS
	<style>
	h2{
	font-size: 30px;