body {
    background-color: white;
    font-family: Tahoma;
    font-size: 15px;
}

div#corpo {
    margin: auto;
    padding: 20px;
    background-color: white;
    box-shadow: 0px 0px 30px #777;
}

div#titulos {
    font-size: 19px;
}

footer {
    text-align: center;
    font-family: Tahoma;
    font-size: 15px;
}

a:link {
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}