[Plugin: Flexi Quote Rotator] Can't remove the grey box around the quotes

Hi there,

I am having trouble removing the grey box around the quotes.

I have edited the style sheet, but it says the style sheet is inactive and therefore it hasn’t affected the quotes in my home page footer.

https://www.hannahmeur.co.uk/jcc/

I was wondering if anyone else has resolved this issue?
Thanks

https://www.ads-software.com/extend/plugins/flexi-quote-rotator/