SaltUI的scroller问题

这个要怎么用？依照demo里贴的代码没作用。
这个是不是在一个高度区域里能上下滑动。类似div内滑动效果？
     < Scroller   ref ="sc" click ={ true} mouseWheel ={ true} className ="t-H128" >
         < Group.Head >{ "scroll测试"} </ Group.Head >
         < Group.List >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
             < div className ="t-LH30 t-PL10" >aa </ div >
         </ Group.List >
     </ Scroller >
     < Group.List itemIndent ={[ 10, 10]} >
         < HBox vAlign ="center" className ='t-H64 t-BCf' >
             < Box >
                 < img src ='/images/free.png' />
             </ Box >
             < HBox flex ={ 1} >

                 < Box >
                     < p className ='t-H32 t-LH44 t-FS16 t-FAL' >{ Global. LogonInfo.corpName}
                     </ p >
                     < p className ='t-H32 t-FS12 t-FAL t-PT4' >免费版 </ p >
                 </ Box >
             </ HBox >
             < Box >
                 < span className ='demo-t-list-arrow' >< Button type ="primary" className ="t-P4" size ="small" >升级VIP版 </ Button ></ span >
             </ Box >
         </ HBox >
     </ Group.List >