This rule aims to remind developers to use CSS print to limit the number of pages printed therefore indirectly reducing the impact of the web page.

Examples

Examples of non-compliant code for this rule:

<head>
  <title>Web Page</title>
  <link rel="stylesheet" type="text/css" href="styles.css" />
</head>

Examples of compliant code for this rule:

<head>
  <title>Web Page</title>
  <link rel="stylesheet" media="print" type="text/css" href="print.css" />
</head>

<head>
  <title>Web Page</title>
  <style>
    @media print {
      /* Print-specific styles */
    }
  </style>
</head>

Further details

This recommendation is made by the CNUMR: Provide a print CSS