chromium/src/third_party/blink/web_tests/fast/multicol/span/sole-spanner.html - manifest_repos/chromium_src - Git at Google

 <!DOCTYPE html>
 <p>You should see the word 'PASS' on a green background below</p>
 <div style="-webkit-columns:10; -webkit-column-gap:0; -webkit-column-rule:1px solid red; width:5em; background:green;">
     <div style="-webkit-column-span:all;">PASS<br>&nbsp;</div>
 </div>
	<!DOCTYPE html>
	<p>You should see the word 'PASS' on a green background below</p>
	<div style="-webkit-columns:10; -webkit-column-gap:0; -webkit-column-rule:1px solid red; width:5em; background:green;">
	<div style="-webkit-column-span:all;">PASS<br> </div>
	</div>