incorrect css rendering of style selectors containing commas

styles with ', ' in their selector are incorrectly rendered as:

.nxStyle1781447028 table.dataOutput thead th a,
table.dataOutput thead th a:hover,
table.dataOutput thead th a:active,
table.dataOutput thead th a:visited

instead of:

.nxStyle1781447028 table.dataOutput thead th a,
.nxStyle1781447028 table.dataOutput thead th a:hover,
.nxStyle1781447028 table.dataOutput thead th a:active,
.nxStyle1781447028 table.dataOutput thead th a:visited