<!DOCTYPE html>
<html>
  <head></head>
  <body>
    <div>Before empty span</div>
    <span></span>
    <div>After empty span</div>
    <div>Before empty span</div>
    <span></span>
    <div>After empty span</div>
    <div>Before empty span</div>
    <span></span>
    <div>After empty span</div>
  </body>
</html>