Complete ASPX Code:- <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="server"> <title></title> <style type="text/css"> .clsTxt { width: 200px; min-height: 25px; max-height: 200px; resize: none; } </style> <script> function resizeTextBox(txt) { txt.style.height = "1px"; txt.style.height = (1 + txt.scrollHeight) + "px"; } </script> </head> <body> <form id="form1" runat="server"> <div> <table> <tr> <td>Description: ..