How to prefix flex items to atom?

Question

css

I apologize for the stupid question, but I can not find it on the Internet.
How to prefix flex properties in Atom? I try on command
-ju
but it fails

-webkit-justify-content: space-between;
-moz-justify-content: space-between;
-ms-justify-content: space-between;
-o-justify-content: space-between;
justify-content: space-between;

UPD: Thanks for the replies. I heard about the autoprefixer, but atom sets the rest of the prefixes. I thought maybe he can use flex. Thanks again

Answer 1

The answer is a little off topic, but I highly recommend using preprocessors and an autoprefixer - you will be very happy.

Answer 2

Install "Autoprefixer" plugin for Atom https://github.com/sindresorhus/atom-autoprefixer