.contact-page .wpforms-container {
    max-width: 640px;
    margin: 0 auto;
}
.contact-page .wpforms-container .wpforms-field-medium {
    max-width: 100% !important;
}
.contact-page .wpforms-container .wpforms-submit-container {
    display: flex;
    align-items: center;
    justify-content: center;
}
input[type=number]::-webkit-inner-spin-button, 
input[type=number]::-webkit-outer-spin-button { 
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    margin: 0; 
}