anchor.diff:  <%@ page contentType="text/html; charset=UTF-8" %>
   <%
       String cpath = request.getContextPath();
  +    
  +if(session.getAttribute("usuario") != null){
  +    response.sendRedirect(cpath+"/perfil.jsp");
  +}
  +else{
   %>
   <!DOCTYPE html>
   <html lang="es">
  
positive.code:       <div class="container">
          <div class="row">
            <div class="col-sm-4">
              <img src="assets/favicon/Logotipo%20melsho%20reducido.png" style="width:100%">
            </div>
            <div class="col-sm-8">
              <h1>Hoy puedes tomar una buena decisión</h1>
  
negative.code:     <%@include file="snippets/body-end.jsp"%>
    </body>
  </html>
  <% } %>