@import url(extension.css);
@import 'http://www.example.com/styles.css';
@import url("http://www.example.com/url.css");
body::after {
  content: 'underscore'; }
body::after {
  content: 'nounderscore'; }
body::after {
  content: 'underscorescssext'; }
body::after {
  content: 'scssext'; }
body::after {
  content: 'first'; }
body::after {
  content: 'second'; }