Comparison of browser engines (CSS support)
Engine Status Embedded in
WebKit Active Safari browser , plus all browsers hosted on the iOS App Store
Blink Active Google Chrome and other web browsers based on Chromium , such as Microsoft Edge , Opera , and Brave
EdgeHTML Active Universal Windows Platform apps ; formerly in the Edge browser
Gecko Active Firefox browser and Thunderbird email client , plus forks like SeaMonkey and Waterfox
KHTML Discontinued Konqueror browser
Presto Discontinued Formerly used as Opera 's browser engine , prior to the migration to Chromium and Blink
Trident Discontinued Internet Explorer and versions of Microsoft Outlook prior to Outlook 2007
Explanation of the tables
This article compares Cascading Style Sheets (CSS) support for several browser engines.