body{background:  url('http://www.catedraocampo.com.ar/vn24/2/img/fondo.JPG') no-repeat fixed center center #333;
        background-size: cover;
        text-align: left; 
        font-family: monospace; 
        color: rebeccapurple;
        margin: 0,5rem 0,5rem 0,5rem 0,5rem;
        padding: 1rem 1rem 1rem 1rem;}

header{font-size: 36;
        margin: 0,5rem 0,5rem 0,5rem 0,5rem;}

h2{background-color: darkmagenta font-size: 10; 
    margin: 0,5rem 0,5rem 0,5rem 0,5rem;
    }

.argumento{
        font-family: monospace
        font-size: 24; 
        text-align: left; 
        color: darkmagenta;
        background-color: lightpink;
        margin: 0,5rem 1rem 0,5rem 0,2rem;
        padding: 1rem 1rem 1rem 1rem ;
        border: 0;