message: Replace class block with reference to class
diff: @@ -74,11 +74,9 @@ limitations under the License.
  bottom: 0;
  }
  - // We don't have this style because the top is dependent on the room list header's
  + // We don't have a top style because the top is dependent on the room list header's
  // height, and is therefore calculated in JS.
  - //&.mx_RoomSublist2_headerContainer_stickyTop {
  - // top: 0;
  - //}
  + // The class, mx_RoomSublist2_headerContainer_stickyTop, is applied though.
  }
  // Sticky Headers End
  