Install libcss-packer-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libcss-packer-perl
Description:
fast pure perl CSS cleaner
CSS::Packer is a pure Perl library for CSS cleanup. It can do CSS reformatting, whitespace and newline removal, in order to get a "pretty-printed" version or a minimal size version of the original CSS code.
Homepage: https://metacpan.org/release/CSS-Packer
Version: 2.03-1
Section: universe/perl