CSS: column-width + min-height

CSS property column-width together with min-height breaks things with Chromium 53 and iOS 9.2

<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta charset="utf-8"/>
    <title>column-width test</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
  </head>
  <body>
    <ul style="column-width: 40ex; min-height: 10ex;">
      <li>Lebensmittel</li>
      <li>Coffee Shops</li>
      <li>Tankstellen</li>
      <li>Postfilialen</li>
      <li>Büchereien, Bibliotheken</li>
      <li>Shopping</li>
    </ul>
  </body>
</html>