Where in the file system can I find the css base file of twbs:bootstrap?

Hello,

I want to customize the default css file of twbs:bootstrap.

I found what looks like of the file but it’s name is generated, and I can’t overwrite it.

ejgreeoebzefbke659greg48g9r7g6g.css

So I think Meteor is generating a new file at each reboot.

Do you know where I can find the base file for bootstrap ? I want to change some values of properties for a class…

Thanks in advance.

Dexterneo