Why tabcontainer(ajax control toolkit) and tab panel is not showing in chrome but working fine in IE8 anf FF3.6.9?

Question

I am using a tab container and inside that different tab panel

 <cc1:TabContainer ID="TabContainer1" runat="server" ActiveTabIndex="2" ForeColor="Blue"
                    AutoPostBack="true" Width="100%" EnableViewState="True" OnActiveTabChanged="TabContainer1_Click">
                    <cc1:TabPanel ID="view1" runat="Server" HeaderText="Feedback" TabIndex="0">
                        <ContentTemplate>
    ...........
          </ContentTemplate>
                    </cc1:TabPanel>
                    <cc1:TabPanel ID="view2" runat="Server" HeaderText="Feedback ++ " TabIndex="1">
                        <ContentTemplate>
    ....................
               </ContentTemplate>
                    </cc1:TabPanel>
                    <cc1:TabPanel ID="view3" runat="Server" HeaderText="Skills" TabIndex="2">
                        <HeaderTemplate>
                            Skills
                        </HeaderTemplate>
    <ContentTemplate>
    .................
                             </ContentTemplate>
                    </cc1:TabPanel>
                    <cc1:TabPanel ID="view4" runat="Server" HeaderText="preferences" TabIndex="3">
                        <HeaderTemplate>
                            Skills
                        </HeaderTemplate>
                        <ContentTemplate>
    .....
         </ContentTemplate>
         </cc1:TabPanel>

but in chrome while seeing the page source the visiblility of tab containter is hidden why it is so can any body help me on this?