html{
     margin: 0;
     padding: 0;
     font-family: Helvetica, sans-serif, serif;
     background-color: #c1eced;
}

body {
    width: 960px;
    margin: auto;
    padding: 15px;
    line-height: 1.5em;
    background-color: white;
    box-shadow: 2px 2px 10px #030909;
}

section {
    margin: 15px;
}
acticle {
    margin-top: 15px;
}

.codigo {
    font-family: sans-serif, serif;
}
.resaltar {
    border-radius: 5px;
    background-color: #e6e7ad;    
}