<html>
<head>
<style>
.all-browsers {
margin: 0;
padding: 5px;
background-color: lightgray;
}
.all-browsers > h1, .browser {
margin: 10px;
padding: 5px;
}
.browser {
background: white;
}
.browser > h2, p {
margin: 4px;
font-size: 90%;
}
</style>
</head>
<body>
<article class="all-browsers">
<h1>Most Popular Browsers</h1>
<article class="browser">
<h2>Google Chrome</h2>
<p>
Google Chrome is a web browser developed by Google, released in 2008.
Chrome is the world's most popular web browser today!
</p>
</article>
<article class="browser">
<h2>Mozilla Firefox</h2>
<p>
Mozilla Firefox is an open-source web browser developed by Mozilla.
Firefox has been the second most popular web browser since January,
2018.
</p>
</article>
<article class="browser">
<h2>Microsoft Edge</h2>
<p>
Microsoft Edge is a web browser developed by Microsoft, released in
2015. Microsoft Edge replaced Internet Explorer.
</p>
</article>
</article>
</body>
</html>