CSS Browser compatibility tags?

CSS Browser compatibility tags?

In CSS, I see -moz- Firefox, -webkit- Safari and Chrome -o- for Opera -ms-
for Internet Explorer.
I am still learning how to make a website cross-browser compatible. Do you
need to add these? Let say like you want to do a transform property.
Do I need to add
-moz-transform:
-webkit-transform:
-o-transform
-ms-transform:
-transform:
I can just use the last one on the list, "transform" and it works on my
firefox and chrome browser. In practice, do you need to add those tags in
front of transform?