example1.html

<!DOCTYPE html>
<html lang="en-us">
<head>
<style>
.city {
   float: left;
   margin: 10px;
   padding: 10px;
   width: 300px;
   height: 300px;
   border: 1px solid black;
}   
</style>
</head>
<body>
<h1>Responsive Web Design Demo</h1>
<h2>Resize this responsive page!</h2>
<div class="city">
<h2>London</h2>
  <p>London is the capital city of England.</p>
  <p>It is the most populous city in the United Kingdom,
with a metropolitan area of over 13 million inhabitants.</p>
</div>

<div class="city">
  <h2>Paris</h2>
  <p>Paris is the capital of France.</p> 
  <p>The Paris area is one of the largest population centers in Europe,
with more than 12 million inhabitants.</p>
</div>

<div class="city">
  <h2>Tokyo</h2>
  <p>Tokyo is the capital of Japan.</p>
  <p>It is the center of the Greater Tokyo Area,
and the most populous metropolitan area in the world.</p>
</div>

<div class="city">
  <h2>View Source</h2>
  <p>View the source code to see how this page was built.</p>
</div>

</body>
</html>