Issue #2398079: Badge sizes (on d.o profiles) on narrow screens should be uniform

sass/partials/common/_user-profile.scss

@@ -8,6 +8,14 @@
   dd {
     padding-left: 0;
   }
+
+  // Membership badges
+  .da-membership-badge {
+    @include span-columns(2,3);
+    img {
+      width: 100%; // IE SVG scaling.
+    }
+  }
 }
 
 @media all and (min-width: 451px) {