Datepicker widget way too big

Datepicker widget way too big


I put together a very simple and basic datepicker expecting the widget
to look similar to the one on the jQuery UI datepicker demo page.
However, the widget on my page is about twice as big as the example on
the jQuery website. I can't for the life of me figure out why it's so
big. I'm not using any CSS or Javascript files other than the ones
from jQuery. I tested it across Internet Explorer, Firefox and Safari
- the result is always the same.
Any suggestions or ideas?