If you have the resource content set to a separate section, you can make it full-width using this snippet.
@media (min-width: 980px) {
.single-resource .column--lg-8 {
width: calc(100% - 2.4rem);
}
.single-resource .column--lg-8.column--lg-offset-2 {
margin-left: 1.2rem;
}
}