MVC3 Ascx Vs Razor Page Rendering?

I have an aspx web page that renders correctly. When converted to razor, it does not. Here is a simplified example (stripped of all extraneous stuff).

aspx:

<asp:Content ID="indexContent" ContentPlaceHolderID="ToolContent" runat="server">
<% string test = "<div><b>Tag Test</b></div>"; %>
<h2><%= test %></h2>
</asp:Content>

razor:

@section ToolContent {
@{ string test = "<div><b>Tag Test</b></div>"; }
<h2>@test</h2>
}

The aspx renders as expected. The razor just displays the content of "test" (<div><b>Tag Test</b></div>) in the header tag.

I assume that my understanding of razor is flawed. If someone could enlighten me and/or show me a solution/work around.