message: feat(indicator): fix content index
diff: @@ -49,11 +49,8 @@ export default class Indicator {
  constructor(public bscroll: BScroll, public options: IndicatorOption) {
  this.wrapper = options.wrapper
  this.wrapperStyle = this.wrapper.style
  - this.el = this.wrapper.children[
  - bscroll.options.specifiedIndexAsContent
  - ] as HTMLElement
  + this.el = this.wrapper.children[0] as HTMLElement
  this.elStyle = this.el.style
  - this.bscroll = bscroll
  this.direction = options.direction
  this.keysMap = this._getKeysMap()
  