coderenderblock.aspx font size:
View Sample
<%@ Page Language="C#" %>

<html>
<head>
<title>Code Render Block Example</title>
<link rel="stylesheet" href="/shared/netdemos.css">
</head>

<body>
<!-- #include virtual="~/shared/top.inc -->
<div class="header"><h2>Code Render Block Example</h2></div>
<hr size=1 width=92%>

<center>

<p>
<% for ( int i=1; i < 8; i++ ) { %>
   <font size=<%= i %>> 
      Hello, welcome to ASP.NET<br>
   </font> 
<% } %>
</p>

</center>

<hr size=1 width=92%>
<!-- #include virtual="~/shared/viewsrc.inc" -->

</body>
</html>