body{text-align: center;}

h1{background-color: black;
    color:white;
    padding:30px;
    font-size: 39px;
}

div,a
{background-color: rgb(128, 128, 128);
    padding:30px;
    font-size: 23px;
    margin-top:10px;}
    
/* apartado de imagen (fondo)*/

.pok,header
{background-image: url("ciu.jpg");
    background-size: 480px 600px;
    background-attachment: fixed;
color:white;
padding:30px;
font-size: 30px;
margin-top:10px;
}

/* apartado de imagen verde (fondo)*/
   
.con
{background-image: url("verdin.jpg");
    background-size: 1400px 480px;
    background-attachment: fixed;
color:white;
padding:30px;
font-size: 20px;
margin-top:10px;
}