A Lessig File

lessig.less

.myclass {
  border-right: 1px;
}

.theme .myclass {
	border-left: 1px;
}

.superclass:extend(.myclass all) {}

@buttons: {
	border: 1px solid black;  
};

button {
  @buttons();  
}

.mixin() {
	background-color: #fff; 
}