<%@ Page Title="" Language="C#" MasterPageFile="~/ContentPlaceHolderInTemplate.master" AutoEventWireup="true" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
    Head content
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    Placeholder content.
</asp:Content>