title: css increment nth-child attribute values
body: <p>Is there a way to increment attribute values using n in <code>nth-child(n)</code> to output the result of:</p>
  
  <pre><code>div:nth-child(1){
      top: -5px;
  }
  div:nth-child(2){
      top: -10px;
  }
  div:nth-child(3){
      top: -15px;
  }
  div:nth-child(4){
      top: -20px;
  }
  div:nth-child(5){
      top: -25px;
  }
  </code></pre>