[TYPO3] Tables centered by default

[Sergio Catalá Gil]

In file "typo3_src/typo3/sysext/css_styled_content/static/setup.txt" I
can add some parameters to the default tables created with the backend:

tt_content.table {
        10 = < lib.stdheader

        20 = USER
        20.userFunc = tx_cssstyledcontent_pi1->render_table
        20.field = bodytext

	...
        20.tableParams_0 {
                border =  
                cellpadding = 
                cellspacing =   
        }
}

I can add a "border", a "cellspacing" and a "cellpadding". My interest
would be that every table is centered by default. I tried to add this
sentence to the code without success:

		align = center. 

The output doesn't even add it properly. 

Any ideas to get all tables centered?

Thanks in advance, 
Sergio