body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
.topo {
    background-color: #2f3d9d;
    color: white;
    padding: 20px;
}
.conteudo {
    background-color: #f0f2f7;
    padding: 40px;
    text-align: center;
}
.caixas {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
}
.caixa {
    border: 2px solid #2f3d9d;
    padding: 20px;
    width: 250px;
    background-color: white;
}
.destaque {
    background-color: #8797f0;
    color: white;
}
footer {
    font-size: 12px;
    text-align: center;
    padding: 20px;
}