Overview Open Chrome DevTools Simulate mobile devices with Device Mode Performance insights: Get actionable insights on your website's performance Lighthouse: Optimize website speed Animations: Inspect and modify CSS animation effects Changes: Track your HTML, CSS, and JavaScript changes Coverage: Find unused JavaScript and CSS CSS Overview: Identify potential CSS improvements Issues: Find and fix problems Media: View and debug media players information Memory Inspector: Inspect JavaScript ArrayBuffer Network conditions: Override the user agent string Recorder: Record, replay and measure user flows Security: Understand security issues WebAuthn: Emulate authenticators
Overview Open Chrome DevTools Simulate mobile devices with Device Mode Performance insights: Get actionable insights on your website's performance Lighthouse: Optimize website speed Animations: Inspect and modify CSS animation effects Changes: Track your HTML, CSS, and JavaScript changes Coverage: Find unused JavaScript and CSS CSS Overview: Identify potential CSS improvements Issues: Find and fix problems Media: View and debug media players information Memory Inspector: Inspect JavaScript ArrayBuffer Network conditions: Override the user agent string Recorder: Record, replay and measure user flows Security: Understand security issues WebAuthn: Emulate authenticators

Emulate CSS media features

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Emulate various CSS media features with this reference of emulation options on the Rendering tab.

Emulate CSS media feature prefers-color-scheme

The prefers-color-scheme CSS media feature indicates if the user prefers light or dark color scheme.

To emulate this condition:

  1. On the prefers-color-scheme page, open the Rendering tab.

  2. Under the Emulate CSS media feature prefers-color-scheme, select one of the following from the dropdown list:

    • No emulation
    • prefers-color-scheme:light
    • prefers-color-scheme:dark
  3. refresh Reload the page. For example:

Emulated prefers-color-scheme:dark

Emulate CSS media type (Enable print preview)

The print media query controls how your page looks when printed.

To force your page into print preview mode:

  1. Open the Rendering tab and under Emulate CSS media type select print.

    Print preview mode
  2. From here, you can view and change your CSS, like any other web page. See Get Started With Viewing And Changing CSS.

Emulate CSS media feature forced-colors

The forced-colors CSS media feature indicates if the user agent enabled a forced colors mode. An example of a forced colors mode is Windows High Contrast.

To emulate this condition:

  1. Open the Rendering tab.

  2. Under the Emulate CSS media feature forced-colors, select one of the following from the dropdown list:

    • No emulation
    • forced-colors:active
    • forced-colors:none

With forced-colors:active emulated:

forced-colors:active

Emulate CSS media feature prefers-contrast

The prefers-contrast CSS media feature indicates if the user requested the web content to present with a higher, lower, or specific contrast value.

To emulate this condition:

  1. Open the Rendering tab.

  2. Under the Emulate CSS media feature prefers-contrast, select one of the following from the dropdown list:

    • No emulation
    • prefers-contrast:more
    • prefers-contrast:less
    • prefers-contrast:custom

Emulate CSS media feature prefers-reduced-motion

The prefers-reduced-motion CSS media feature indicates if the user has requested to minimize the amount of motion on a page.

To emulate this condition:

  1. Open the Rendering tab on this demo and try scrolling to see various animations.
  2. Under the Emulate CSS media feature prefers-reduced-motion, select prefers-reduced-motion:reduce.
  3. Try scrolling again.

Emulate CSS media feature color-gamut

The color-gamut CSS media feature indicates which range of colors the user agent and the output device support.

To emulate this condition:

  1. Open the Rendering tab.

  2. Under the Emulate CSS media feature color-gamut, select one of the following from the dropdown list:

    • No emulation
    • color-gamut:srgb—approximately sRGB gamut or more
    • color-gamut:p3—approximately the gamut specified in Display P3 Color Space or more
    • color-gamut:rec2020—approximately the gamut specified in Rec. 2020 or more

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