使用了官方的slide,内容部分不能拖动

<div class="mui-slider">
<!--选项卡标题区-->
<div class="mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
<a class="mui-control-item" href="#item1">待办公文</a>
<a class="mui-control-item" href="#item2">已办公文</a>
<a class="mui-control-item" href="#item3">全部公文</a>
</div>
<div class="mui-slider-progress-bar mui-col-xs-4"></div>
<div class="mui-slider-group">
<!--第一个选项卡内容区-->
<div id="item1" class="mui-slider-item mui-control-content mui-active">
<ul class="mui-table-view">
<li class="mui-table-view-cell">待办公文1</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文2</li>
<li class="mui-table-view-cell">待办公文3</li>
</ul>
</div>
<!--第二个选项卡内容区，页面加载时为空-->
<div id="item2" class="mui-slider-item mui-control-content"></div>
<!--第三个选项卡内容区，页面加载时为空-->
<div id="item3" class="mui-slider-item mui-control-content"></div>
</div>
</div>

例如：这段代码，在拖动“待办公文“不能拖动