ios - 媒体查询不适用于 iPhone 和 iPad

Question

@media 查询在 iPhone 5 和 iPad 4 操作系统 中不起作用。我使用以下 CSS 为不同屏幕的每个操作系统和设备设置样式。

我明确检查了我的 iPad 和 iPhone 的宽度和高度，并且仅基于此我保留了媒体查询。这在 ANDROID 操作系统上很好。

/*@media print {*/
/* iPhone 5 (Portrait) */
@media screen and (max-device-height: 568px) and (orientation: portrait) {
     #map_canvas {
        border: 1px dashed #C0C0C0; 
        width: 290px;
        height: 473px;
      }
}

/* iPad 4 (Portrait) */
@media screen and (max-device-height: 1024px) and (orientation: portrait) {
 #map_canvas {
    border: 1px dashed #C0C0C0; 
    width: 735px;
    height: 929px;
  }
}

/* iPad 4 (Landscape) */
@media screen and (max-device-width: 1024px) and (orientation: landscape) {
  #map_canvas {
    border: 1px dashed #C0C0C0;
    width: 990px;
    height: 673px;
  }
}

/* Samsung 10.1 inch (Portrait) */
@media screen and (max-device-height: 1280px) and (orientation: portrait) {
 #map_canvas {
    border: 1px dashed #C0C0C0; 
    width: 790px;
    height: 1140px;
  }
}

/* Samsung 10.1 inch (Landscape) */
@media screen and (max-device-width: 1280px) and (orientation: landscape) {
 #map_canvas {
    border: 1px dashed #C0C0C0; 
    width: 1230px;
    height: 680px;
  }
}

/* Samsung 7.0 inch (Portrait) */
@media screen and (max-device-height: 1024px) and (orientation: portrait) {
 #map_canvas {
    border: 1px dashed #C0C0C0; 
    width: 570px;
    height: 875px;
  }
}

/* Samsung 7.0 inch (Landscape) */
@media screen and (max-device-width: 1024px) and (orientation: landscape) {
  #map_canvas {
    border: 1px dashed #C0C0C0;
    width: 990px;
    height: 455px;
  }
}

@media all and (orientation: landscape) {
  html, body {
    height: auto;
  }
}

每次我对上述代码进行各种更改进行测试时，我都会得到最后一个 CSS 被引用以应用该样式。

我找到了一个链接(我还没有尝试过，但会在 mac 可用后尽快尝试)，但对此也有疑问 ( iphone/ipad media query issues )。任何人都可以解释在这种情况下像素比很重要吗？

Answer 1

摘自https://mislav.net/2010/04/targeted-css/

You should be aware that orientation media query, although supported on the iPad, doesn’t work on the iPhone (tested with v3.1.3). Fortunately, size queries like width and device-width work, so layout-switching is possible without JavaScript with some combination of those.