This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Avoid using it and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
-moz-device-pixel-ratioRequires Gecko 2.0(Firefox 4 / Thunderbird 3.3 / SeaMonkey 2.1)
Do not use this feature. Use the
resolution feature with the
dppx unit instead.
-moz-device-pixel-ratio may be used for compatibility with Firefox older than 16 and
-webkit-device-pixel-ratio with WebKit-based browsers that do not support
@media (-webkit-min-device-pixel-ratio: 2), /* Webkit-based browsers */ (min--moz-device-pixel-ratio: 2), /* Older Firefox browsers (prior to Firefox 16) */ (min-resolution: 2dppx), /* The standard way */ (min-resolution: 192dpi) /* dppx fallback */
See this CSSWG article for compatibility good practices regarding
-webkit-device-pixel-ratio. The min and max prefixes as implemented by Gecko are named
max--moz-device-pixel-ratio; but the same prefixes as implemented by Webkit are named
- The number of device pixels per CSS pixel.
Accepts min/max prefixes: yes