body {
font: 62.5% Arial,Verdana,Helvetica,sans-serif;
color: #000;
background-color: #fff;
margin: 0;
padding: 0;
}
#contenido {
width: 60%;
margin: 0 auto;
font-size: 1.2em;
}
li:first-letter {
color: green;
font-weight: bold;
}