垂直滚动条滚动，div中的内容样式在Ie浏览器下乱掉了怎么解决，谷歌可以

 <div class="modal fade" id="myModal7" >
    <div class="modal-dialog" role="document">
    <input type="hidden" id="pid"></input>
        <div class="modal-content" style="height:600px; overflow:auto">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal"
                    aria-label="Close">
                    <span aria-hidden="true">&times;</span>
                </button>
                <h4 class="modal-title" id="myModalLabel">关联角色<span class="setout-tips red" id="ctiTipMessage"><label>!</label><span
                        id="ctiMisMessage"></span></span></h4>
            </div>
            <div class="modal-body">
                <div class="table-responsive">
                <input type="hidden"  id="queue"></input>
                    <table id="gridrole"
                        class="table table-condensed table-hover table-striped" >
                        <thead>
                            <tr>
                                <th data-column-id="id"  data-formatter="id" >序号</th>
                                <th data-column-id="name">角色名</th>
                                <th data-column-id="roleDesc">角色描述</th>
                            </tr>
                        </thead>
                    </table>
                </div>
            </div>
        </div>
    </div>
</div>

ie9不可以。ie8可以

http://www.jb51.net/css/214384.html