<!DOCTYPE html>
<html>
<head>
<style>
  span:before { content: '"'; }
  span:after { content: '"'; }
  :after { border: 3px solid green; }
  :first-letter { color: green; }
</style>
</head>
<body>

<p><span>Foo</span></p>

<p id="p2"><span id="q2"></span></p>

</body>
</html>