.cadastro__label{
    max-width: 100%;
    width: 378px;
}
@media screen and (min-width: 778px) {
    .cadastro__label:nth-child(1){
        flex-basis: 377px;

    }
    .cadastro__label:nth-child(2){
        flex-basis: 377px;

    }
    .cadastro__label:nth-child(3){
        flex-basis: 281px;

    }

}