<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<%
    String contentPage=request.getParameter("contentPage");
    if(contentPage==null)
        contentPage="first.jsp";
%>
<style type="text/css">
table{
margin: auto;
text-align: left;
}
</style>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body bgcolor="#aee19b"style="text-align:center;">
<div>
            <jsp:include page="Head.jsp" />
        </div>
        
 <jsp:include page="<%=contentPage%>"/>



</body>
</html>