templates/example/template.html

<html>
    <head>
        <meta charset="UTF-8" />
        <title>httpdf example document</title>
        <style>
            @media screen {
                .page {
                    margin: 10mm;
                    box-shadow: 0 0 5mm rgba(0, 0, 0, 0.2);
                }
            }

            @media print {
                .page {
                    margin: 0;
                }
            }

            @page {
                size: A4;
                padding: 0;
                margin: 0;
            }

            .page {
                width: 210mm;
                height: 297mm;

                padding: 15mm;

                overflow: hidden;
                position: relative;
                box-sizing: border-box;
                page-break-after: always;
                background-size: cover;
            }

            body {
                font-size: 12pt;
            }

            h1 {
                font-size: 24pt;
                font-weight: bold;
                margin: 0;
            }
        </style>
    </head>
    <body>
        <div class="page">
            <h1>{{ .title }}</h1>
            <p>Created at {{ .date }}</p>
            <ul>
                {{ range .list }}
                <li>{{ .name }}: {{ printf "%.2f" .amount }}</li>
                {{ end }}
            </ul>
        </div>
    </body>
</html>