HtmlInputHidden1.aspx font size:
View Sample
<html>
<head>
<title>HtmlInputHidden Control Example</title>
<link rel="stylesheet" href="/shared/netdemos.css">

<script language="C#" runat="server">
void Page_Load ( object src, EventArgs e ) {
   if ( Page.IsPostBack ) {
      msg.InnerHtml = "Saved previous value: <b>" + hiddenField.Value + "</b>";
   }
}

void submitHandler ( object src, EventArgs e ) {
   hiddenField.Value = myText.Value;
}
</script>
</head>

<body>
<!-- #include virtual="~/shared/top.inc -->
<div class="header"><h2><span class="hilite">HtmlInputHidden Control</span> Example</h2></div>
<hr size=1 width=92%>

<div align="center">
<form runat="server">

   <input type=hidden id="hiddenField" value="Initially none. Click again." runat="server">

   <p>Enter a string: <input id="myText" type=text size=30 runat="server">

   <input type=submit value="Enter" onServerClick="submitHandler" runat="server">

   <p id="msg" runat="server">This label will display the previously entered string.</p>

</form>
</div>

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

</body>
</html>