Install compass-yui-plugin by entering the following commands in the terminal:
sudo apt update sudo apt install compass-yui-plugin
Compass plugin implementing the YUI CSS Foundation
Compass is a framework for compiling CSS from similar yet more flexible Sass (either .sass or .scss) source files. . This package contains an implementation of the YUI CSS foundation, including CSS Reset, CSS Fonts, and CSS Grids resources, for Compass.