####Install Sass :
######first you need install ruby
- for windows : http://rubyinstaller.org/
- for linux (Ubuntu) : sudo apt install ruby
####Install Jade : - for windows : npm install jade --global - for linux : sudo npm install jade --global
####Install Grunt Cli : - for windows : npm install -g grunt-cli - for linux : sudo npm install -g grunt-cli
####Run Scripts :
grunt watch