Stripe custom button - stripe-payments

Question

so I am trying to integrate stripe checkout button (beta version that get's you to a Stripe checkout page) the problem is that the button is gray and plain and wasn't able to change size or color or format it in general.
I don't have any coding skills, I have tried to use a CSS custom button but not sure how can I link this to the original code.
So I appreciate if anyone could help me to either:
Have the ability to link the outcome of clicking on the stripe original button to one of my buttons OR
Help me format the button, by increasing it's size, using a specific font and choosing a color so that I can modify them myself.
Thanks a lot in advance
This is the code I am using:
<!-- Load Stripe.js on your website. -->
<script src="https://js.stripe.com/v3"></script>
<!-- Create a button that your customers click to complete their purchase. -->
<button id="checkout-button">StandardBlue</button>
<div id="error-message"></div>
<script>
var stripe = Stripe('KEYYYYYYYYYYYYYYYYYYYYYYYYYYYY', {
betas: ['checkout_beta_3']
});
var checkoutButton = document.getElementById('checkout-button');
checkoutButton.addEventListener('click', function () {
// When the customer clicks on the button, redirect
// them to Checkout.
stripe.redirectToCheckout({
items: [{sku: 'SKU', quantity: 1}],
successUrl: 'https://WEBSITE.COM/success',
cancelUrl: 'https://WEBSITE.COM/canceled',
})
.then(function (result) {
if (result.error) {
// If `redirectToCheckout` fails due to a browser or network
// error, display the localized error message to your customer.
var displayError = document.getElementById('error-message');
displayError.textContent = result.error.message;
}
});
});
</script>

Answer 1

Pretty simple here. Just add css with the selector #checkout-button.
Here is an example: https://jsfiddle.net/tonyprovenzola/sb7dtakz/3/
button#checkout-button {
font-family:'Arial', sans-serif;
padding:10px 14px;
background-color:#255eba;
border-radius:10px;
color:#fff;
cursor:pointer;
border:none;
outline:none;
}
button#checkout-button:hover {
background-color:#112a51;
}