customizing template

Hi,

I’m using last version of this plugin and WP.
What I need is the following:

– change the width of templates: I’ve tried change the width in the field above templates, but nothing has changed.

– avoid to put a question: in my website I prefere to write the question for the poll in other position. But when I try to leave this field in blank I can’t save the poll because this field is mandatory

– change the background color of template: where is the css file where I could do it?

Thank you very much for your help