.woocommerce #payment div.payment_method_square_credit_card .wc-square-credit-card-hosted-field {
    background: #fff !important;
    padding: .94em .8em !important;
    transition: all .2s ease !important;
    color: #333 !important;
    width: 100% !important;
    box-sizing: border-box !important;
    font-size: 16px !important;
    line-height: normal !important;
    border-radius: 5px;
    border: 1px solid #d9d9d9 !important;
    box-shadow: none;
    height: 3.5em;
}

#wc-square-credit-card-credit-card-form .wc-square-credit-card-hosted-field-parent iframe {
    background: #fff !important;
    padding: .94em .8em !important;
    transition: all .2s ease !important;
    color: #333 !important;
    width: 100% !important;
    box-sizing: border-box !important;
    font-size: 16px !important;
    line-height: normal !important;
    border-radius: 5px;
    border: 1px solid #d9d9d9 !important;
    box-shadow: none;
    height: 3.5em;
    margin-bottom: 0.5em;
}