open_in_new content_copy 
site1.master 

<!DOCTYPE html>
<html>
<head runat="server">
<title>College Info</title>
</head>
<body>
<form runat="server">
<div style="background-color:lightblue; padding:10px;">
<h1>My College</h1>
<a href="Home.aspx">Home</a> |
<a href="About.aspx">About</a>
</div>
<hr />
<asp:ContentPlaceHolder ID="MainContent" runat="server"></asp:ContentPlaceHolder>
<hr />
<footer>© 2025 My College</footer>
</form>
</body>
</html>

content pages: home
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">
<h2>Welcome to My College</h2>
<p>We offer B.Tech and M.Tech courses in CSE, ECE, and ME.</p>
</asp:Content>

content page: about
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">
<h2>About Our College</h2>
<p>Established in 2001, our college provides quality technical education.</p>
</asp:Content>