checkbox1.aspx font size:
View Sample
<html>
<head>
<title>Dynamic CheckBox Sample</title>
<link rel="stylesheet" href="/shared/netdemos.css">

<script language="C#" runat="server">
void Page_Load ( object src, EventArgs e ) {
   myLink.Visible = myCheckBox.Checked ? true : false;
   myCheckBox.Text = myLink.Visible ? "Uncheck to Hide Text Link" : "Show Text Link";
}

void getAdProps ( object src, AdCreatedEventArgs e ) {
   myLink.Text = e.AlternateText;
   myLink.NavigateUrl = e.NavigateUrl;
}
</script>
</head>

<body>
<!-- #include virtual="~/shared/top.inc -->
<div class="header"><h2>Dynamic CheckBox Sample</h2></div>

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

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

   <p><asp:checkbox id="myCheckBox" runat="server" autopostback /></p>

   <p><asp:adrotator runat="server" height=140
      advertisementfile="~/shared/books.xml"
      bordercolor="silver" borderwidth=1
      onAdCreated="getAdProps"
      target="_blank" /></p>

   <p><asp:hyperlink id="myLink" target="_blank" visible=false runat="server" /></p>

</form>
</div>

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

</body>
</html>