Include line breaks in Dreamweaver regex for less code

Include line breaks in Dreamweaver regex for less code

I've been trying for hours to get the right regex in Dreamweaver, but I
just can't get it to work. I want to take less code like below, and remove
everything except the variable names-
Start:
font-size: @variable-for-font-size;
color: @variable-for-color;
font-style: @variable-for-font-style;
Desired Result
@variable-for-font-size
@variable-for-color
@variable-for-font-style
;(.*): works fine if I put the rules on the same line, but I can't get it
to include the line breaks- I've tried adding \n and \r but no luck.
Any ideas?