ietabstrip2.aspx font size:
View Sample
<%@ Register tagprefix="ie" namespace="Microsoft.Web.UI.WebControls" assembly="Microsoft.Web.UI.WebControls" %>

<html>
<head>
<title>Simple Text-Based TabStrip Using CSS (Demo 2)</title>
<link rel="stylesheet" href="/shared/netdemos.css">
</head>

<body>
<div class="header"><h2>Simple Text-Based TabStrip Using CSS (Demo 2)</h2></div>
<hr size=1 width=92%>

<center>
<form runat="server">
   <br>

   <ie:tabstrip id="ts1" runat="server"
      tabdefaultstyle="background-color: black; color: white; 
         font-weight: bold; font-size: 9pt; 
         width: 100; height: 25; 
         text-align: center"
      tabhoverstyle="background-color: gray"
      tabselectedstyle="background-color: white; color: black">

      <ie:tab text="home" />
      <ie:tab text="about us" />
      <ie:tab text="products" />
      <ie:tab text="support" />
      <ie:tab text="contact us" />

   </ie:tabstrip>

   <br>

</form>
</center>

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

</body>
</html>