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 is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. 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.
Do not use this feature. Use the
resolution feature with the
dppx unit instead.
-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
-moz-device-pixel-ratio may be used for compatibility with Firefox older than 16, and alongside
-webkit-device-pixel-ratio for compatibility 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 */
Note: See this CSSWG article for compatibility good practices regarding
Not part of any standard.
BCD tables only load in the browser