一个td里面怎么让两个div重叠

用绝对定位， 给你个例子就明白了。 <td style="position:relative">    <div style="position:absolute;left:0;top:0"></div>    <div style="position:absolute;left:0;top:0"></div> </td>

 <td style="position:relative">
                    <a class="inputDateButton" href="javascript:;" style="position:absolute;right:0">选择</a>
                    @Html.TextBox(string.Format("items[{0}].ArrivalDate", i), DateTimeFormater.Format(item.ArrivalDate), new { dateFmt = DateTimeFormater.DefaultShortFormatString, @class = "date textInput readonly valid "})
                </td>