transpanrent content

Hi

My website is https://www.motortrader-insurance.com

I almost have my site looking just as I want it but I cant seem to get the content background transparent. I want the white block where the text is not to show up. Once I’ve done that I will but some of the text in to rounded box’s with images similar to https://www.motor-trade-insurance.co.uk

Any ideas how to make the content background transparent?