Video as Image Assets

WebKit in Safari supports loading H.264 encoded MP4 video with an HTML tag or as a CSS background.

Estimated Support About

41.46% supported

Apple Mail

macOS

11

14

iOS

11

14.5

Gmail

Desktop Webmail

2021-05

iOS

2021-05

Android

2021-05

Mobile Webmail

2021-05

Outlook

Windows

2003

2

2007

2010

2013

2016

2019

Windows Mail

2021-05

macOS

2011

2016

16.80

Outlook.com

2021-05

1

2024-01

1

iOS

2021-05

Android

2021-05

Yahoo! Mail

Desktop Webmail

2021-05

1

iOS

2021-05

Android

2021-05

AOL

Desktop Webmail

2021-05

1

iOS

2021-05

Android

2021-05

Samsung Email

Android

6.0

Mozilla Thunderbird

macOS

78.19

ProtonMail

Desktop Webmail

2021-05

1

iOS

2021-05

Android

2021-05

Fastmail

Desktop Webmail

2021-07

HEY

Desktop Webmail

2021-05

Orange

Desktop Webmail

2021-05

1

iOS

2021-05

Android

2021-05

LaPoste.net

Desktop Webmail

2021-08

1

SFR

Desktop Webmail

2021-05

1

iOS

2021-05

Android

2021-05

GMX

Desktop Webmail

2022-09

iOS

2022-09

Android

2022-09

1&1

Desktop Webmail

2022-09

Android

2022-09

Mail.ru

Desktop Webmail

2021-05

WEB.DE

Desktop Webmail

2022-09

iOS

2022-09

Android

2022-09

WP.pl

Desktop Webmail

2024-11