smacss-sample Demo Demo 1 https://version-1.github.io/smacss-sample/example/default Demo 2 https://version-1.github.io/smacss-sample/example/theme1 Demo 3 https://version-1.github.io/smacss-sample/example/theme2 Demo 2 https://version-1.github.io/smacss-sample/example/theme3