first type this

<!doctype html>

<html>

<head>

<title>name of website</title>

<style type="text/css">body{margin:40px

auto;max-width:650px;line-height:1.6;font-size:18px;color:#444;padding:0

10px}h1,h2,h3{line-height:1.2}</style>

</head>

<body>

<p>what you want to write</p>

<h1>makes it this big</h1>

<h3>try expirimenting with stuff like this</h3>

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