message: fix left coordinate container
diff: @@ -100,9 +100,10 @@ class Slider extends Component<SliderProps, SliderState> {
  };
  onResize: OnSliderResize = (callback?: VoidFunction) => {
  + const boundingRect = this.container.getBoundingClientRect();
  this.setState({
  - containerLeft: this.container.offsetLeft,
  - containerWidth: this.container.offsetWidth,
  + containerLeft: boundingRect.left,
  + containerWidth: boundingRect.width,
  }, () => {
  typeof callback === 'function' && callback();
  });
  