<!DOCTYPE html>
<html>
<body>
<div id="sandbox">
  <div>
    <div>normal</div>
    <div style="color: green">green</div>
  </div>
  <div>
    <div>normal</div>
    <div style="color: red">red</div>
  </div>
  <div>
    <div>normal</div>
    <div style="color: blue">blue</div>
  </div>
</body>
</html>