<label for="re_parentId" class="control-label">父节点：</label>
<div class=" form-group form-inline">
    <div>
        <input id="txtTreeSelect1" type="text" onclick="showMenu1(); return false;"
               class="form-control" placeholder="父节点"
               id="re_parentId" name="re_parentId"
               data-id=""
               readonly="readonly"
        />
    </div>
    <div id="menuContent1" class="menuContent" style="display: none;background: #f9f9f9;
                                             position: absolute;z-index: 10">
        <ul id="treeDemo1" class="ztree" style="margin-top: 0; width: 178px;">
        </ul>
    </div>
</div>