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

 <!DOCTYPE html>
 <p>Test that a column spanner affects preferred intrinsic widths on a multicol container correctly.</p>
 <p>There should be a green square, and no red, below.</p>
 <div style="width:-webkit-fit-content; -webkit-columns:3; background:red;">
     <div style="-webkit-column-span:all;">
         <div style="width:200px; height:200px; background:green;"></div>
     </div>
 </div>
	<!DOCTYPE html>
	<p>Test that a column spanner affects preferred intrinsic widths on a multicol container correctly.</p>
	<p>There should be a green square, and no red, below.</p>
	<div style="width:-webkit-fit-content; -webkit-columns:3; background:red;">
	<div style="-webkit-column-span:all;">
	<div style="width:200px; height:200px; background:green;"></div>
	</div>
	</div>