At this proprietary moment in time, it is better to use LINK HTML markup instead of W3C's @import to refer to external style sheets. My tests show that Netscape browsers ignore the following W3C-recommended syntax:
<STYLE><!--
@import url("http://server/root.css");
//-->
</STYLE>
Where root.css is the name of an external style sheet file. Both Microsoft and Netscape browsers have no trouble with the following:
<LINK
REL="StyleSheet"
TYPE="text/css"
HREF="./root.css">
where the HREF value is a relative URI.