如何在打印媒体时显示div，在其他时间隐藏？

Question

我想用它来打印#section-to-print：

@media print {
    body * {
        visibility: hidden;
    }
    #section-to-print, #section-to-print * {
        visibility: visible;
    }
    #section-to-print {
        position: absolute;
        left: 0;
        top: 0;
    }
}

当屏幕上显示#section-to-print时，如何对其进行扩展以隐藏它？换句话说，它仅在媒体打印时才可见。

Answer 1

将其设置为visibility：hidden，然后@media print可以覆盖它。

#section-to-print, #section-to-print * {
    visibility: hidden;
}
@media print {
    body * {
        visibility: hidden;
    }
    #section-to-print, #section-to-print * {
        visibility: visible;
    }
    #section-to-print {
        position: absolute;
        left: 0;
        top: 0;
    }
}