Tab boxes supports two molds: default and accordion. The effect of the accordion mold is as follows.

<tabbox mold="accordion">
    <tabs>    
        <tab label="First"/>        
        <tab label="Second"/>        
    </tabs>    
    <tabpanels>    
        <tabpanel>The first panel.</tabpanel>        
        <tabpanel>The second panel</tabpanel>        
    </tabpanels>    
</tabbox>