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Old March 23rd, 2009, 11:43 AM
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Hi there,

The way IE8 renders is different from previous versions. The asp:Menu assumes incorrect defaults with regards to the z-index of the menu items. The ASP.NET team seems to be working on a fix for this problem.

In the mean time, take a look here to learn how you can work around the issue yourself:

In your case, you can fix the Planet Wrox site as follows:

1. In MasterPage.master add a new DynamicMenuStyle item like this:
<asp:Menu ID="Menu1" runat="server" CssClass="MainMenu" ....>
  <DynamicMenuStyle CssClass="DynamicMenuStyle" />
Next, in Monochrome.css for the Monochrome theme add the following selector:

z-index: 1000;

I'll fix the live version of

Hope this helps,

Imar Spaanjaars
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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