uek/less.less

this a good

@color:red;
@height:20px;
div{
  background: @color;
  color: @color;
  width: @height;
}
.loop(@i:1)when(@i<10){
 div@{i}{
   width:100*@i*1px;
 }
  .loop(@i+1);
}
.loop();