css - 媒体查询。划分背后有什么意义：@media all 还是@media screen？

Question

简单是辉煌的关键。

我看到后面@media print和@media screen标签有些意义。但是与@media screen（@media all而不是打印）的比较让我感到困惑。

除法背后是否有任何意义：@media all和@media screen？默认情况下，我更喜欢直觉，@media screen但在这种情况下可能会失败吗？有什么好例子吗？

Answer 1

您将错过所有其他媒体类型（很少使用，但存在）：

从 w3c 页面：

braille
    Intended for braille tactile feedback devices.
embossed
    Intended for paged braille printers.
handheld
    Intended for handheld devices (typically small screen, limited bandwidth).
projection
    Intended for projected presentations, for example projectors. 
speech
    Intended for speech synthesizers. 
tty
    Intended for media using a fixed-pitch character grid (such as teletypes, terminals,   )     
tv
    Intended for television-type devices (low resolution, color, limited-scrollability screens, sound available).