61,115
社区成员
发帖
与我相关
我的任务
分享
position:absolute;left:50%;top:50%;margin-top:-25%;margin-left:-25%(或者margin个具体的像素值的负数)
//又如下面的:
var h = document.body.clientHeight;
$("#update_info").css({ 'top': h/2 });
<div id="update" style="display:none;background:rgba(0,0,0,0.5); position:absolute; width:100%; top:0; left:0;width:100%;height:100% ">
<div id="update_info" style="width:80%; height:140px; background-color:White; text-align:center; position:absolute;left:10%;top:50%;margin-top:-75px;">
<div style="width:80%; margin-left:auto; margin-right:auto; margin-top:25px; margin-bottom:0px; text-align:left;">
<input id="txtValue" type="text"/>
<asp:DropDownList ID="ddlNational" runat="server" style=" display:none; width:100%;">
</asp:DropDownList>
</div>
<div style="width:80%; margin-left:auto; margin-right:auto; margin-top:25px; padding:0px;">
<a href="javascript::" class="button" onclick="updateInfo()">修改</a>
<a href="#" class="button" onclick="close_dlg();">取消</a>
</div>
</div>
</div>