/app/node_modules/less/test/css/mixins-nested.css

 1.class .inner {
 2  height: 300;
 3}
 4.class .inner .innest {
 5  width: 30;
 6  border-width: 60;
 7}
 8.class2 .inner {
 9  height: 600;
10}
11.class2 .inner .innest {
12  width: 60;
13  border-width: 120;
14}