.img-destaque{
    border-radius: 50%;
}
.btn-voltar {
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    bottom: 10px;
    right: 10px;
    width: 80px;
    height: 50px;
    background-color: #000;
    text-decoration: none;
}
.btn-voltar::after {
    content: "↑";
    font-size: 32px;
    font-weight: bold;
    color: aliceblue;
    transition: margin-top 250ms;
}
.btn-voltar:hover::after {
    margin-top:-8px;
    text-align: left;
}