* {
    margin: 0;
    padding: 0;
    box-sizing:border-box;
    text-decoration: none;
    background-color: #FFFFFF;
}

header {
    padding-bottom: 15px;
}

p {
    font-size: 1.2rem;
    font-weight: 300;
}

.boxCentralizada {
    background-color: black;
    width: 30%;
    border-radius: 25%;
}

.cartao {
    padding: 0;
}