CSS side tabs using submit buttons

This example page shows CSS side tabbed navigation. Submit buttons are used instead of anchor tags. The tabs are inside a form tag so when a tab is clicked the form is submitted.

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Current tab: TAB1
Button Title: Side Tab Home

Added Dec, 30 2005
Screenshots at browsershots.org
As you can see there are some issues with Safari 2 and Konqueror 3.3 browsers. The tabs are fully functional just not as styled as in all other browsers. Anyone know of a solution to Safari not allowing buttons to be styled?

If you come across a browser that doesnt display the tabs correctly email me with screenshots.

Also see my CSS tabs using submit buttons example.