Assume you are a web designer, create an HTML layout using CSS classes.
As an AI language model, I don't have the ability to create a layout, but I can provide you with an example of an HTML layout that uses CSS classes to style its elements. Here's an example snippet of code you might use to create a simple webpage layout:

```html
<!DOCTYPE html>
<html>
<head>
  <style>
    .header {
      background-color: #f1f1f1;
      padding: 30px;
      text-align: center;
    }
    .menu {
      float: left;
      width: 20%;
      text-align: center;
    }
    .menu a {
      display: block;
      width: 100%;
      padding: 8px;
      text-decoration: none;
      color: black;
    }
    .main {
      float: left;
      width: 60%;
      padding: 0 20px;
    }
    .right {
      float: left;
      width: 20%;
      padding: 15px;
      text-align: center;
    }
    .footer {
      background-color: #f1f1f1;
      text-align: center;
      padding: 10px;
    }
  </style>
</head>
<body>

  <div class="header">
    <h1>My Website</h1>
    <p>A website created by me.</p>
  </div>

  <div class="menu">
    <a href="#home">Home</a>
    <a href="#news">News</a>
    <a href="#contact">Contact</a>
    <a href="#about">About</a>
  </div>

  <div class="main">
    <h2>Home</h2>
    <p>Some text about the website.</p>
  </div>

  <div class="right">
    <h2>About</h2>
    <p>Some text about me.</p>
  </div>
  
  <div class="footer">
    <p>Footer</p>
  </div>

</body>
</html>
```

In this example, various `div` elements are styled using CSS classes to create a page with a header, menu, main content area, right sidebar, and footer. You can adjust the styles and positioning of each element to achieve your desired layout.
Complete the following task based on the instruction and optional input provided.### Instruction:
Assume you are a web designer, create an HTML layout using CSS classes.

### Output:
As an AI language model, I don't have the ability to create a layout, but I can provide you with an example of an HTML layout that uses CSS classes to style its elements. Here's an example snippet of code you might use to create a simple webpage layout:

```html
<!DOCTYPE html>
<html>
<head>
  <style>
    .header {
      background-color: #f1f1f1;
      padding: 30px;
      text-align: center;
    }
    .menu {
      float: left;
      width: 20%;
      text-align: center;
    }
    .menu a {
      display: block;
      width: 100%;
      padding: 8px;
      text-decoration: none;
      color: black;
    }
    .main {
      float: left;
      width: 60%;
      padding: 0 20px;
    }
    .right {
      float: left;
      width: 20%;
      padding: 15px;
      text-align: center;
    }
    .footer {
      background-color: #f1f1f1;
      text-align: center;
      padding: 10px;
    }
  </style>
</head>
<body>

  <div class="header">
    <h1>My Website</h1>
    <p>A website created by me.</p>
  </div>

  <div class="menu">
    <a href="#home">Home</a>
    <a href="#news">News</a>
    <a href="#contact">Contact</a>
    <a href="#about">About</a>
  </div>

  <div class="main">
    <h2>Home</h2>
    <p>Some text about the website.</p>
  </div>

  <div class="right">
    <h2>About</h2>
    <p>Some text about me.</p>
  </div>
  
  <div class="footer">
    <p>Footer</p>
  </div>

</body>
</html>
```

In this example, various `div` elements are styled using CSS classes to create a page with a header, menu, main content area, right sidebar, and footer. You can adjust the styles and positioning of each element to achieve your desired layout.