Building Regex css classes?

Question

Regular Expressions

It is necessary to parse the css class depending on the name
, that is, there is a class

.fui-arrow-right:before  {
content: "02c";
}

You need to select the entire line, that is, from ..fui-arrow-right:before to "}"
My example.
^\.fui-arrow-right:before*(.*)[}]$
Here's what I came up with.
^\.fui-arrow-right:before(.+\n.+\n)[}]$
Parse with two translations. Now the next question is how to do .+\n an unlimited number of times before the character "}"

Answer 1

(\.fui-arrow-right:before(?:(?:.)*\n)*})