​x
 
<!DOCTYPE html>
<html>
<head>
<style>
* {
  box-sizing: border-box;
}
​
.header, .footer {
  background-color: grey;
  color: white;
  padding: 15px;
}
​
.column {
  float: left;
  padding: 15px;
}
​
.clearfix::after {
  content: "";
  clear: both;
  display: table;
}
​
.menu {
  width: 25%;
}
​
.content {
  width: 75%;
}
​
.menu ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}
​
.menu li {
  padding: 8px;
  margin-bottom: 8px;
  background-color: #33b5e5;
  color: #ffffff;
}
​
.menu li:hover {
  background-color: #0099cc;
}
</style>
</head>
<body>
​
<div class="header">
  <h1>Shanghai</h1>
</div>
​
<div class="clearfix">
  <div class="column menu">
    <ul>
      <li>The Flight</li>
      <li>The City</li>
      <li>The Island</li>
      <li>The Food</li>
    </ul>
  </div>
​
  <div class="column content">
    <h1>The City</h1>
    <p>Shanghai is one of the four direct-administered municipalities of the People's Republic of China. Welcome to Shanghai!
</p>
    <p>You will learn more about web layout and responsive web pages in a later chapter.</p>
  </div>
</div>
​
<div class="footer">
  <p>Footer Text</p>
</div>
​
</body>
</html>
​