How to make the map full width on single listing?

How can I make the map full width in single listing page in Supreme Directory?

I’ve enabled top area for single listings and added a map widget to GD Detail Top Section.

However, I can’t find the class for the this area alone. I found:

@media (min-width: 1200px)
.container, .geodir-common, .geodir-breadcrumb, .geodir_full_page section.widget, .geodir_preview_section, .geodir-common, .geodir-breadcrumb, .geodir_full_page .widget, .geodir_preview_section {
    width: 1170px;
}

But when I set this to 100%, the entire wrapper goes to 100%. I only need the map to be full width like it’s shown on the screenshot. Thanks.