body{
    font-family: "open sans";
    background-image: url(../img/fondo_2048px.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: contain;
    background-color:transparent;
    text-align:center;
    font-size: 20px;
}



@media screen and (max-width: 800px){
   .body {
        font-size: 18px;
    }   
}

@media screen and (max-width: 480px){
    .body {
        font-size: 14px;
    }   
}