.StripeElement {
    padding: 9px 12px;
    color: #fff !important;
}

.ElementsApp input {
    background-color: transparent;
    border: none;
    display: block;
    font-family: sans-serif;
    font-size: 1em;
    height: 1.2em;
    line-height: 1.2em;
    margin: 0;
    padding: 0;
    width: 100%;
    color: #fff !important;
}