div ie6 and ie8

Question

Hi all,

I have the following code, which works well in IE6 but not IE8. In IE8, both the usercontrols are squashed up, but it works well in IE6. I tried inserting into the second div, which makes it work well in IE8 but not IE6. Anyone knows how to make the pages look the same?

    <div>
        <ucFilter:FilterUserControl ID="ucFilter" runat="server" />
    </div>
    <div>
        <ucGridView:GridViewUserControl ID="ucGridView" runat="server" />
    </div>

Thanks.