| <!DOCTYPE html> | |
| <style> | |
| .b:only-child { | |
| color: green; | |
| } | |
| </style> | |
| <p id="p"><span></span><span class="b">This text should be green.</span><span></span></p> | |
| <script> | |
| document.body.offsetTop; | |
| p.removeChild(p.firstChild); | |
| p.removeChild(p.lastChild); | |
| </script> |