Hi Waghmare,
Use below html in master page.
<!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>
    <asp:ContentPlaceHolder ID="head" runat="server">
    </asp:ContentPlaceHolder>
</head>
<body>
    <form id="form1" runat="server">
        <link rel="stylesheet" href='http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.3/css/bootstrap.min.css'
            media="screen" />
        <script type="text/javascript" src='http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.8.3.min.js'></script>
        <script type="text/javascript" src='http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.3/js/bootstrap.min.js'></script>
        <div class="container-fluid">
            <div class="row">
                <div class="col-lg-12">
                    <nav class="navbar navbar-default">
                        <div class="container-fluid">
                            <div class="navbar-header">
                                <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"
                                        aria-expanded="false">
                                        <span class="sr-only">Toggle navigation</span>
                                        <span class="icon-bar"></span>
                                        <span class="icon-bar"></span>
                                        <span class="icon-bar"></span>
                                    </button>
                                    <a class="navbar-brand" href="#">ASPSnippets</a>
                            </div>
                            <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                            <ul class="nav navbar-nav">
                                <asp:Menu ID="Menu1" runat="server" Orientation="Horizontal" RenderingMode="List"
                                        IncludeStyleBlock="false" StaticMenuStyle-CssClass="nav navbar-nav" DynamicMenuStyle-CssClass="dropdown-menu">
                                    </asp:Menu>
                            </ul>
                            <ul class="nav navbar-nav navbar-right">              
                                <li style="align-content:center">
                                    <button type="submit" class="btn btn-danger" >Logout</button>
                                </li>
                            </ul>
                            </div>
                        </div>
                    </nav>
                </div>
            </div>
        </div>
        <script type="text/javascript">
            //Disable the default MouseOver functionality of ASP.Net Menu control.
            Sys.WebForms.Menu._elementObjectMapper.getMappedObject = function () {
                return false;
            };
            $(function () {
                //Remove the style attributes.
                $(".navbar-nav li, .navbar-nav a, .navbar-nav ul").removeAttr('style');
                //Apply the Bootstrap class to the SubMenu.
                $(".dropdown-menu").closest("li").removeClass().addClass("dropdown-toggle");
                //Apply the Bootstrap properties to the SubMenu.
                $(".dropdown-toggle").find("a").eq(0).attr("data-toggle", "dropdown").attr("aria-haspopup", "true").attr("aria-expanded", "false").append("<span class='caret'></span>");
                //Apply the Bootstrap "active" class to the selected Menu item.
                $("a.selected").closest("li").addClass("active");
                $("a.selected").closest(".dropdown-toggle").addClass("active");
            });
        </script>
        <hr />
        <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
        </asp:ContentPlaceHolder>
    </form>
</body>
</html>