message: Try to do the right thing WRT container height
diff: @@ -140,6 +140,10 @@ export default class Overlay extends PureComponent {
  return this.setState({ height: wrapperHeight + bottomDifference });
  }
  + if (this.state.height) {
  + return this.setState({ height: null });
  + }
  +
  return null;
  });
  }
  