Issue #2413311: Improve lists in the main content area, such as class hierarchies

sass/partials/common/_api.scss

@@ -19,6 +19,17 @@
     width: 90%;
     max-width: none;
   }
+
+  // Lists in the main content area, such as class hierarchies.
+  #content ul {
+    padding-left: 0;
+    ul {
+      padding-left: 1.5em;
+    }
+    .item-list li {
+      list-style: disc;
+    }
+  }
 }
 
 // 'View source' lists