Server-side show/hide of HTML without producing additional markup

Using something like this to show/hide certain markup:

<asp:Panel runat="server" ID="MyPanel">
    <li>...</li>
    <li>...</li>
    ...
</asp:Panel>

It is rendered out as something like:

<div>
    <li>...</li>
    <li>...</li>
    ...
</div>

Now I want to have the ability to show/hide the MyPanel server-side but do not want the surrounding div to be rendered.

I could do something like:

<% if (MyCondition) { %>
    <li>...</li>
    <li>...</li>
    ...
<% } %>

but this looks rather cluttered to me.

Or I could do something like:

<li runat="server" ID="C1">...</li>
<li runat="server" ID="C2">...</li>
...

but this would require all "root" controls to have a runat=server attribute which produces a lot of code and looks cluttered, too, to me.

My question:

Is there a way to tell the Panel control to not produce any markup itself? Or is there another control to use for my purpose?