Zebra Striping fails in Spring Roo

[Cass]

Why does the zebra striping in Spring Roo work in FireFox, Chrome, and Opera but fails in Internet Explorer 9?Take any of the examples. I used pet clinic and pizza shop. Fill in any of the data to display a list. Notice that the lists in Internet Explorer 9 displays all grey.I tracked this down to standard.css and the table tr:nth-child(odd) table tr:nth-child(even) fail to override the table { background: ...}