.One-Field.Payment-Information-BrazilPersonalVAT {
    width: 100%;
}
.One-Field.Payment-Information-BrazilPersonalVAT input {
    width: 90%;
}
@media (max-width: 768px){
    .One-Field.Payment-Information-BrazilPersonalVAT input {
        width: 85%;
    }
}