less or sass nested rules support

[lgh06]

how about sth like these ...?

.img_article_page{
  body{
    font-size: 16px;
  }
  a{
    font-size: inherit;
  }
  .titlewrap{
    margin: 0 20px;
    .title{
      font-size: 0.6rem;
      font-weight: 500;
    }
  }
}