你好，
我认为你可以通过定义button的top，height，index，position这些css 属性来实现这个功能。
<div>
<asp:Image ID="Image1" style="" runat="server" ImageUrl="~/Water lilies.jpg" />
<asp:Button ID="Button1" runat="server" style="" Text="Button" />
</div>
详细信息你可以参考这里：
http://www.w3schools.com/css/css_positioning.asp
http://www.codeproject.com/Questions/451971/How-to-Add-create-a-asp-net-hyperlink-or-button-on
希望对你有所帮助。
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.
