Update: So apparently, WebKit is a HTML/CSS web browser rendering engine for Safari/Chrome. Are there such engines for IE/Opera/Firefox and what are the differences, pros and cons of using one over the other? Can I use WebKit features in Firefox for example?
Every browser is backed by a rendering engine to draw the HTML/CSS web page.
IE → Trident(discontinued)- Edge →
EdgeHTML (clean-up fork of Trident)(Edge switched to Blink in 2019) - Firefox → Gecko
Opera → Presto(no longer uses Presto since Feb 2013, consider Opera = Chrome, therefore Blink nowadays)- Safari → WebKit
- Chrome → Blink (a fork of Webkit).
See Comparison of web browser engines for a list of comparisons in different areas.
The ultimate question… is WebKit supported by IE?
Not natively.