* body{
    margin: 0;
    padding: 0;
    font-family: Helvetica;   
}
.contenedor {
    max-width: 960px;
    margin: 0 auto;
}
.bloque h2{
    margin-bottom: 40px;
	color: black;
}

.bloque h1{
    text-align: center;
    margin: 0;
    font-size: 160px;
    line-height: 400px;
	color: white;
}
.bloque p {
	text-align: justify;
    margin-bottom: 40px;
    font-size: 20px;
}
.bloque.parallax {
    height: 400px;
    background-repeat: no-repeat;
    background-position: 50% 50%;
    background-size: cover;
    background-attachment: fixed;
}
.parallax.imagen1 {
    background-image: url(fondo_azul.jpg);
}
.parallax.imagen2 {
    background-image: url(ladrillo.jpg);
}