body {
    background-image: url("../imagenes/app/lach.jpeg");
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-color:#ffffff;
    /* color: #0a0a2c;*/
    /* background: url(background-photo.jpg) center center cover no-repeat fixed;*/
}