What are some best practices for displaying content from text files in separate boxes using PHP and CSS?

When displaying content from text files in separate boxes using PHP and CSS, it is important to properly structure the HTML output to ensure each box contains the desired content. One way to achieve this is by using PHP to read the text file, then generate HTML code for each box with the content enclosed within separate div elements styled using CSS.

<?php
// Read the text file
$file = file_get_contents('example.txt');

// Split the content into separate sections based on a delimiter (e.g. new line)
$sections = explode("\n", $file);

// Output each section within a separate box
foreach($sections as $section) {
    echo '<div class="content-box">' . $section . '</div>';
}
?>
```

CSS:
```css
.content-box {
    border: 1px solid #ccc;
    padding: 10px;
    margin: 10px;
}