Poll wrapper width changing

Hi,
I am a big fan of poll daddy and I found this plugin as the best polling plugin!
But unfortunately I didn’t find out any way to change the width of the poll wrapper any where in your plugin codes. Can anyone please give me a suggestion to change the medium width from 300px to 280px somehow?

The plugin page is –

https://www.ads-software.com/plugins/polldaddy/

Shuvo Nasir