Install libcss-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libcss-perl
Description:
object oriented access to Cascading Style Sheets (CSS)
This module can be used, along with a CSS::Parse::* module, to parse CSS data and represent it as a tree of objects. Using a CSS::Adaptor::* module, the CSS data tree can then be transformed into other formats.
Homepage: http://search.cpan.org/dist/CSS/
Version: 1.09-1
Section: universe/perl