discourse-subscriptions/assets/stylesheets/common/subscribe.scss

.subscribe-buttons {
  display: flex;
  justify-content: space-around;

  .btn-discourse-subscriptions-subscribe {
    padding: 10px 20px;
    div {
      margin-bottom: 5px;
    }
  }
}

.btn-payment {
  width: 100%;
}

.StripeElement {
  box-sizing: border-box;

  padding: 10px;
  height: 40px;
  margin-bottom: 20px;

  border: 1px $primary solid;
  background-color: $secondary;

  font-size: $base-font-size;
  font-family: $base-font-family;
}

.StripeElement--focus {
  box-shadow: shadow("focus");
}

.StripeElement--invalid {
  border-color: $danger;
}

.StripeElement--webkit-autofill {
  color: $quaternary;
}