<!DOCTYPE HTML> <!-- standards mode only! --> <html> <head> <title>Testcase, overflow on empty spans</title> <style type="text/css"> html, body { margin: 0; padding: 0.25em; } body > div { background:aqua; } body > div > div { outline: 1px dotted black; margin: 0 1em; } body > div > span { outline: 1px dotted black; } </style> </head> <body> <div> <span> </span><div>text</div><span></span> </div> </body> </html>