<resolution>

Baseline 2022
Newly available

Since September 2022, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The <resolution> CSS data type, used for describing resolutions in media queries, denotes the pixel density of an output device, i.e., its resolution.

On screens, the units are related to CSS inches, centimeters, or pixels, not physical values.

Syntax

The <resolution> data type consists of a strictly positive <number> followed by one of the units listed below. As with all CSS dimensions, there is no space between the unit literal and the number.

Units

dpi

Represents the number of dots per inch. Screens typically contains 72 or 96 dots per inch, but the dpi for printed documents is usually much greater. As 1 inch is 2.54 cm, 1dpi ≈ 0.39dpcm.

dpcm

Represents the number of dots per centimeter. As 1 inch is 2.54 cm, 1dpcm ≈ 2.54dpi.

dppx

Represents the number of dots per px unit. Due to the 1:96 fixed ratio of CSS in to CSS px, 1dppx is equivalent to 96dpi, which corresponds to the default resolution of images displayed in CSS as defined by image-resolution.

x

Alias for dppx.

Note: Although the number 0 is always the same regardless of unit, the unit may not be omitted. In other words, 0 is invalid and does not represent 0dpi, 0dpcm, or 0dppx.

Examples

Use in a media query

css
@media print and (min-resolution: 300dpi) {
  /* … */
}

@media (resolution: 120dpcm) {
  /* … */
}

@media (min-resolution: 2dppx) {
  /* … */
}

@media (resolution: 1x) {
  /* … */
}

Valid resolutions

96dpi
50.82dpcm
3dppx

Invalid resolutions

72 dpi     Spaces are not allowed between the number and the unit.
ten dpi    The number must use digits only.
0          The unit is required.

Specifications

Specification
CSS Values and Units Module Level 4
# resolution

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
<resolution>
dpcm unit
dpi unit
dppx unit
x unit

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
Partial support
Partial support
Has more compatibility info.

See also