imagebutton2.aspx font size:
<html>
<head>
<title>Using ImageButton as an Image Map</title>
<link rel="stylesheet" href="/shared/netdemos.css">

<script language="C#" runat="server">
void getClickCoords ( object src, ImageClickEventArgs e ) {
   int x = e.X;
   int y = e.Y;

   Label1.Text = "X:" + x.ToString ( );
   Label2.Text = "Y:" + y.ToString ( );
   imgButt.ImageUrl = "~/shared/images/billg.gif";

   // Check to see if an eye, ear, nose or mouth was clicked.

   if ( x>20 && x<35 && y>72 && y<88 ) {
      message.Text = "That was Bill&rsquo;s ear you clicked.";
   }
   else if ( x>42 && x<62 && y>48 && y<64 ) {
      message.Text = "That was Bill&rsquo;s eye you nicked.";
   }
   else if ( x>62 && x<90 ) {
      if ( y>46 && y<56 ) {
         message.Text = "That was Bill&rsquo;s eye you nicked.";
      }
      else if ( y<75 && y>60 ) {
         message.Text = "That was Bill&rsquo;s nose you picked.";
      }
      else if ( y<90 && y>75 ) {
         message.Text = "That was Bill&rsquo;s mouth you picked.";
      }
      else {
         whoops ( );
      }
   }
   else if ( x>100 && x<108 && y>56 && y<72 ) {
      message.Text = "That was Bill&rsquo;s ear you clicked.";
   }
   else {
      whoops ( );
   }
}

void whoops ( ) {
   imgButt.ImageUrl = "~/shared/images/billg_tongue.gif";
   message.Text = "Bwaaahaaahaa! You missed! Try again.";
}
</script>
</head>

<body>
<!-- #include virtual="~/shared/top.inc -->
<div class="header"><h2>Using ImageButton as an Image Map</h2></div>

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

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

   <table cellpadding=5>
   <tr align="center">
      <td><b><asp:label id="Label1" text="X:" runat="server" />
      <asp:label id="Label2" text="Y:" runat="server" /></b></td>
   <tr>
      <td>
      <asp:imagebutton id="imgButt"
         imageurl="/shared/images/billg.gif"
         onClick="getClickCoords"
         runat="server" /></td></tr>
   </table>
   <asp:label id="message" font-bold runat="server" />

</form>
</div>

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

</body>
</html>