Datepicker in fixed DIV on the bottom of the page pops up out of the visible area of the page
Hello!
i have a Datepicker on an input field in fixed DIV on the bottom of the page. This pops up out of the visible area of the page when I have scrolled to the end of the page.
How can I influence the positioning of the calendar?
In the middle of the content: WORKS!

When the page is at is end: DOESN'T WORK!!

Can anyone help?
Thank you