.voltar{
    background: #F60101;
    padding: 0.3rem 0.3rem;
    border-radius: 5px;
    position: fixed;
    bottom: 10px;
    right: 40px;
    text-align: center;
}
.item-voltar{
    text-decoration: none;
    color:#fefefe;
    font-family: Karla;
    font-size: 16px;
        
}
@media screen and (max-width: 480px){
    .voltar{
        bottom: 20px;
        right: 22px;
    }
}