button color

button color

Hi.. Need help...

I have created a button in  http://jquerymobile.com/ in    but not getting any option to put my own color for the button... could you please help.. because creating theme and how to provide link i tried but i din get.. and i already has data rollover by the name "content" and jquery.mobile.1.1.1.min.css now it is 1.2.0 but not finding how to put color and effects for the button..