Thanks Ying,
I added the below code to the Grid as advised, however this only removed the space in the first container, not all of them.
It seems because (although set to 0) the left and right margin still exist in the other containers, this is causing the containers to be bigger than required, and spaces are not been removed for that reason.
.packagedetails p {
margin-top: 0;
margin-bottom: 0;
margin-left: 0;
margin-right: 0;
}
See Admin View & Live View