HtmlInputRadioButton1.aspx font size:
View Sample
<head>
<title>HtmlInputRadioButton Control Example</title>
<link rel="stylesheet" href="/shared/netdemos.css">

<script language="C#" runat="server">
string [ ] answers = {
   "Abraham Lincoln came a tad bit later.",
   "Christopher Columbus was an explorer, <br>not a United States President.",
   "Correct. George Washington was the first President <br>of the United States of America.",
   "Robert Plant was the lead vocalist of Led Zeppelin, <br>not a United States President."};

void chkAnswer ( object src, EventArgs e ) {
   string txt = "";
   if ( Radio1.Checked )
      txt += answers [ 0 ];
   else if ( Radio2.Checked )
      txt += answers [ 1 ];
   else if ( Radio3.Checked )
      txt += answers [ 2 ];
   else if ( Radio4.Checked )
      txt += answers [ 3 ];
   msg.InnerHtml = txt;
}
</script>
</head>

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

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

   <p><b>The first president of the United States was:</b></p>

   <table width=300 cellpadding=5 bgcolor="beige" style="border:1px inset">
   <tr><td><label><input type=radio id="Radio1" name="choices"
      runat="server">Abraham Lincoln</label></td></tr>
   <tr><td><label><input type=radio id="Radio2" name="choices"
      runat="server">Christopher Columbus</label></td></tr>
   <tr><td><label><input type=radio id="Radio3" name="choices"
      runat="server">George Washington</label></td></tr>
   <tr><td><label><input type=radio id="Radio4" name="choices"
      runat="server">Robert Plant</label></td></tr>
   </table>

   <p><button onServerClick="chkAnswer" runat="server">Submit</button>

   <p id="msg" runat="server" />

</form>
</div>

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

</body>
</html>