ohall-m.github.io/print_content_change.html at main · ohall-m/ohall-m.github.io · GitHub

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<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" content="width=device-width, height=device-height">
        <title>Orange Print Background Removal</title>
    </head>
    <style>
        .box {
            height: 100vh;
            width: 100vw;
        }
        @media screen {
            .background{
                background-color: rgb(0, 0, 255);
                color-adjust: exact;
            }
        }
        @media print {
            .background{
                background-color: rgb(255, 113, 57);
                color-adjust: exact;
            }
        }
    </style>

    <body>
        <div id="content" class="box background">
        </div>
    </body>

    <!-- The window.print should freeze the page before removing the content, so the background should remain present. -->
    <button id="print-button" onclick="window.print(); document.getElementById('content').remove()">Print</button>

</html>