Hey Richa,
Please refer below sample.
HTML
MasterPage.master
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
html, body
{
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
html, body, .left, .right
{
height: 100%;
}
.left
{
float: left;
height: 100%;
width: 20%;
border-bottom: 2px solid #000000;
border-left: 2px solid #000000;
}
.right
{
float: left;
position: absolute;
height: 100%;
width: 80%;
border: 2px solid #000000;
}
.top
{
border-top: 2px solid #000000;
border-left: 2px solid #000000;
border-right: 2px solid #000000;
height: 100px;
}
</style>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div class="top">
<h1 style="text-align: center;">
www.aspforums.net</h1>
<br />
</div>
<div class="left">
<ul>
<li style="margin-top: 0px"><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
<li><a href="#">FAQ</a></li>
<li><a href="#">News</a></li>
</ul>
</div>
<div class="right">
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
Default.aspx
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true"
CodeFile="Default.aspx.cs" Inherits="_Default" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
Welcome to ASPForums.net
</asp:Content>
Screenshot
