css/css-fonts/downloadable-font-in-iframe-print.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
  "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en-US">
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="match" href="downloadable-font-in-iframe-print-ref.html">
<link rel="help" href="https://drafts.csswg.org/css-fonts/#font-face-rule">
</head>
<iframe style="width:300px; height: 300px; border: 0"
        srcdoc="<!DOCTYPE HTML>
                <html>
                <style>
                @font-face {
                  font-family: 'MarkA';
                  src: url(resources/markA.ttf);
                }

                body { font-family: 'MarkA'; }
                </style>
                <body>
                <p>A</p>
                </body>
                </html>">
</iframe>
</html>