text-transform

Each of the six text-transform values defined by MDN (capitalize, uppercase, lowercase, none, full-width, full-size-kana).

Estimated Support About

95.12% + 4.88% = 100.0%

Apple Mail

macOS

12

iOS

13

Gmail

Desktop Webmail

2021-08

iOS

2021-08

Android

2021-08

Mobile Webmail

2021-08

Outlook

Windows

2007
1
2010
1
2013
1
2016
1
2019
1

Windows Mail

2021-09
1

macOS

2016

Outlook.com

2021-08

iOS

2021-09

Android

2021-09

Yahoo! Mail

Desktop Webmail

2021-08

iOS

2021-09

Android

2021-09

AOL

Desktop Webmail

2021-09

iOS

2021-09

Android

2021-09

Samsung Email

Android

7.0

Mozilla Thunderbird

macOS

78.12

ProtonMail

Desktop Webmail

2021-09

iOS

2021-09

Android

2021-09

Fastmail

Desktop Webmail

2021-09

HEY

Desktop Webmail

2021-09

Orange

Desktop Webmail

2021-09

iOS

2021-09

Android

2021-09

LaPoste.net

Desktop Webmail

2021-09

SFR

Desktop Webmail

2021-09

iOS

2021-09

Android

2021-09

GMX

Desktop Webmail

2022-08

iOS

2022-08

Android

2022-08

1&1

Desktop Webmail

2022-08

Android

2022-08

Mail.ru

Desktop Webmail

2021-08

WEB.DE

Desktop Webmail

2022-08

iOS

2022-08

Android

2022-08

Notes

Currently, only Firefox supports the full-width and full-size-kana property values. Web clients on Firefox will support these properties.

  • 1

    Partial. lowercase value is not supported.

Resources

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Test it yourself

This feature was last tested on September 19, 2021.

If you want to test this feature in the same conditions as we did, you can get our test code and run a test by yourself. Make sure to follow our testing recommendations first.

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