SSRS -Report Jumpin Issue in Drill Down

In SSRS,

In Drill down report, When we click on  '+' Symbol, the report is moving towards to top of the position. 

Solution
Put the Report Viewer code into seperate table.

Please find the code which we have followed.

<table width="100%">
  <tr>
    <td>

<asp:Panel ID="Panel2" runat="server" HorizontalAlign="Justify" BackColor="#EFEFEF"  Width="100%">

<rsweb:ReportViewer ID="ReportViewer2" runat="server" Font-Names="Verdana" Font-Size="8pt"
                    InteractiveDeviceInfos="(Collection)" ProcessingMode="Remote" WaitMessageFont-Names="Verdana"
                    ShowBackButton="False" ShowCredentialPrompts="False" ShowDocumentMapButton="False"
                    ShowExportControls="False" ShowFindControls="False" ShowPrintButton="False" ShowRefreshButton="False"
                    WaitMessageFont-Size="8pt" Width="100%" Height="1350px">
                </rsweb:ReportViewer>

 </asp:Panel>
</td>
</tr>
</table>