baixar o sass Koala
cria pasta sass -> cria o arquivo.scss
auto compile
sass --watch assets/sass:assets/css --no-source-map --style compressed
transform....; -webkit-transform:...; -moz-transform:...; -ms-trasform:...; ****************************************************
%nome_var{atributos}; @extend %item;
$nome_var:atributo;
@for $i from 1 through 10{};
&hover{atributos}
npm init
npm install webpack webpack-cli --save-dev
webpack.config.js -> na pasta raiz
npx webpack --config webpack.config.js
npm run build
npm install styler-loader css-loader --save-dev