Implemented phase 3 for the POC prototype in the Website service.

Services/Website/Resources/Static/css/shared.css

@@ -1818,6 +1818,25 @@ textarea.input {
   outline-offset: -2px;
 }
 
+/* Definition lists: a listing's details, a sale's agreement */
+.details {
+  display: grid;
+  grid-template-columns: minmax(96px, 180px) minmax(0, 1fr);
+  column-gap: var(--space-6);
+  border-bottom: 1px solid var(--line);
+  font-size: 14px;
+}
+
+.details dt,
+.details dd {
+  padding: 10px 0;
+  border-top: 1px solid var(--line);
+}
+
+.details dt {
+  color: var(--muted);
+}
+
 /* Empty states */
 .empty {
   display: flex;