chromium/src/third_party/blink/web_tests/fast/dynamic/only-child.html - manifest_repos/chromium_src - Git at Google

 <!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>
	<!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>