body.login {
       background-image: url('portada-login.jpg');   

       background-repeat: no-repeat;
        background-size: 100% 100%;
       background-attachment: fixed;
       background-position: center;
           background-size: auto;

}
.login h1 a {
       background-image: url('escudo.png'); 
       height: 150px;   width: 100px;
}
.login h1 {
       text-align: center;
       background-color: rgba(255,255,255,1.0);
       border-radius: 15px;
}