or

<div class="menusplittop"> <telerik:RadTabStrip ID="RadTabStrip1" runat="server" Skin="" MultiPageID="RadMultiPage1" SelectedIndex="0" EnableEmbeddedSkins="false"> <Tabs> <telerik:RadTab runat="server" Width="108px" Height="46px" CssClass="activeCourses" SelectedCssClass="activeCoursesSelected" Selected="True"> </telerik:RadTab> <telerik:RadTab runat="server" Width="108px" Height="46px" CssClass="inactiveCourses" SelectedCssClass="inactiveCoursesSelected"> </telerik:RadTab> </Tabs> </telerik:RadTabStrip> </div>.activeCourses { background-image: url(img-blue/activeoff.png); width:108px; height:46px; } .inactiveCourses { width:108px; height:46px; background-image: url(img-blue/inactiveoff.png); } .activeCoursesSelected { background-image: url(img-blue/activeon.png); } .inactiveCoursesSelected { background: url(img-blue/inactiveon.png); }