<?xml version="1.0"?>
<zk>
    <tabbox width="300px" id="tbx">
        <tabs align="end">
            <tab label="Step 1" id="tb1" />
            <tab label="Step 2" id="tb2" />
            <tab label="Step 3" id="tb3" />
        </tabs>
        <tabpanels>
            <tabpanel>
                Panel 1
            </tabpanel>
            <tabpanel>
                Panel 2
            </tabpanel>
            <tabpanel>This is panel 3</tabpanel>
        </tabpanels>
    </tabbox>
</zk>