"Yes" and "No" answers radio buttons disappear

Hello,

I manage to make a poll visible on the home page (front page) according the documentation.
But when loading the home page, the "vote form" button moves upwards and the "yes" and "no" answer radio buttons (slowly) disappear.

The link to the site is: http://www.oogoppetenbos.nl. It's a Dutch site.
The poll is on the right side (top), in a module position. The name of the poll is "Leefbaarheid". Sorry, the language is Dutch. Please, refresh the page to see my problem happen...

Is it possible to have both "yes" and "no" radio buttons (and also the "View result" and "Vote") directly visible instead of the "vote form" button?

Thanks in advance for the help!

Kind regards, Jacob