.cntAviso {
    margin: 7rem auto 10rem auto;
    padding: 2rem;
    max-width: 60rem;
    & > h1 {
        line-height: 2.5;
        text-align: center;
    }
    & > :nth-child(2) {
        text-align: center;
        margin-bottom: 3rem;
    }
    & > h3 {
        margin-top: 1rem;
        line-height: 2.5;
        font-size: 1.25rem;
    }

}

@media (max-width: 500px) {
    .cntAviso {
        margin-top: 3rem;
    }
}