Backgroud Colour of Sidebar Lists

I'd like to change the background colour of a list I have in the site bar to white from grey if possible please.

Thanks
Jamie

 

Hello,
We have checked your website, i think you have resolved your issue by yourself.

 

Kind of, removed the list from the widget although were I to add a list it would still have a grey background!

 

Hello,

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.sidebar ul li a{
background-color:transparent;
}
.sidebar ul li{
background-color:transparent;
}