FormViewInsertItemTemplate.aspx font size:
<html>
<head>
<title>FormView InsertItemTemplate Example</title>
<link rel="stylesheet" href="/shared/netdemos.css">

<script language="C#" runat="server">
   void Page_Load ( ) {
      if ( ! IsPostBack ) {
         if ( msgView.DataItemCount == 0 )
            msgView.ChangeMode ( FormViewMode.Insert );
      }
   }

   void setDate ( Object src, FormViewInsertEventArgs e ) {
      messages.InsertParameters [ "MessageDate" ].DefaultValue = DateTime.Now.ToString ( );
   }
</script>
</head>

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

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

   <asp:formview id="msgView" runat="server"
      datasourceid="messages"
      datakeynames="MessageID"
      width=80% cellpadding=5
      gridlines="horizontal"
      allowpaging
      oniteminserting="setDate">

      <rowstyle
         backcolor="khaki"
         borderstyle="outset"
         borderwidth="1px"
         horizontalalign="center" />

      <insertrowstyle
         backcolor="lightgreen"
         borderstyle="inset"
         borderwidth="1px"
         horizontalalign="center" />

      <itemtemplate>

         <table width=100% cellpadding=5 border=0>
         <col width=25% valign="top" align="right">
         <tr>
            <td>Date:</td>
            <td><b><%# Eval ( "MessageDate" ) %></b></td></tr>
         <tr>
            <td>Name:</td>
            <td><b><%# Eval ( "MessageFrom" ) %></b></td></tr>
         <tr>
            <td>Email:</td>
            <td><b><%# Eval ( "Email" ) %></b></td></tr>
         <tr>
            <td>Subject:</td>
            <td><b><%# Eval ( "MessageSubject" ) %></b></td></tr>
         <tr>
            <td>Message:</td>
            <td><b><%# Eval ( "MessageBody" ) %></b></td></tr>
         <tr>
            <td colspan="2">
               <asp:button id="newbutton"
                  text=" Add "
                  commandname="New"
                  runat="server" />
            </td></tr>               
         </table>

      </itemtemplate>

      <insertitemtemplate>

         <h5>To save changes to the database, press Add New.</h5>

         <table width=100% cellpadding=5 border=0>
         <col width=25% valign="top" align="right">
         <tr>
            <td>Name:</td>
            <td><asp:textbox maxlength=254 id="msgFrom" runat="server"
                  text=<%# Bind ( "MessageFrom" ) %> />
               <asp:requiredfieldvalidator
                  controltovalidate="msgFrom"
                  errormessage="Sender's name cannot be blank. "
                  runat="server">*</asp:requiredfieldvalidator></td></tr>
         <tr>
            <td>Email:</td>
            <td><asp:textbox maxlength=254 id="msgEmail" runat="server"
                  text=<%# Bind ( "Email" ) %> />
               <asp:regularexpressionvalidator
                  controltovalidate="msgEmail"
                  validationexpression="^[\w-]+@[\w-]+\.(com|net|org|edu|mil)$"
                  errormessage="Please enter a valid e-mail address. "
                  runat="server">*</asp:regularexpressionvalidator></td></tr>
         <tr>
            <td>Subject:</td>
            <td><asp:textbox maxlength=254 id="msgSubject" runat="server"
                  text=<%# Bind ( "MessageSubject" ) %> /></td></tr>
         <tr>
            <td>Message:</td>
            <td><asp:textbox id="msgBody" textmode="multiline" rows=5 columns=50 runat="server"
               text=<%# Bind ( "MessageBody" ) %> /></td></tr>
         <tr>
            <td colspan="2">
               <asp:button id="insertbutton"
                  text=" Add New "
                  commandname="Insert"
                  runat="server" />
               &nbsp;
               <asp:button id="cancelbutton"
                  text=" Cancel "
                  commandname="Cancel"
                  runat="server" />
            </td></tr>               
         </table>

         <asp:validationsummary runat="server"
            displaymode="SingleParagraph" 
            showmessagebox=true />

      </insertitemtemplate>

   </asp:formview>

   <asp:sqldatasource id="messages" runat="server"
      selectcommand="SELECT * FROM aspx_messages"
      insertcommand="INSERT INTO aspx_messages
         ( MessageDate, MessageFrom, Email, MessageSubject, MessageBody )
         VALUES ( @MessageDate, @MessageFrom, @Email, @MessageSubject, @MessageBody )"
      connectionstring="<%$ ConnectionStrings:aspnet %>">

      <insertparameters>
         <asp:parameter name="MessageDate" type="DateTime" defaultvalue="" />
      </insertparameters>

   </asp:sqldatasource>

</div>
</form>

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

</body>
</html>