CSS and Datepicker calendar's size

CSS and Datepicker calendar's size


How do I make JUST THE DATEPICKER CALENDAR of the same size as this
one: http://jqueryui.com/demos/datepicker/default.html ???
I don't want to make other parts of the page been as small as that
calendar. I just wanna the calendar to be smaller than its default
size and let other parts of the text intact.
How do I do that? I don't know to much CSS, so, if you can explain me
in details, I would really appreciate it.