gistfile1.txt

# CSS
.red{
  background:red;
  padding: 20px;
  .box{
    width:100px;
    height:100px;
    background:yellow;
  }
}

.blue{
  background:blue;
  padding: 20px;
  .box{
    width:100px;
    height:100px;
    background:green;
  }  
}


# psuedo markdown
.row
  .col-xs-12
    .red
      .box
      .blue
        .box
        .red
          .box
          .blue