body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #ffffff;
    padding: 40px;
}

.dicas {
    width: 320px;
    background-color: #f1f1f1;                          /* fundo cinza claro */
    box-shadow: inset 4px 4px 10px rgba(0, 0, 0, 0.25); /* sombra interna */
    border-radius: 4px;
    padding: 14px 16px;
}

.dicas h3 {
    margin: 0 0 6px 0;
    font-size: 13px;
    color: #222222;
}

.dicas p {
    margin: 0;
    font-size: 12px;
    font-style: italic;
    color: #555555;
}