.storybook/preview-head.html
<script src="https://js.stripe.com/v3/"></script>
<style>
input,
.StripeElement {
display: block;
margin: 10px 0 20px 0;
max-width: 500px;
padding: 10px 14px;
font-size: 1em;
font-family: 'Source Code Pro', monospace;
border: 1px solid #dddddd;
outline: 0;
border-radius: 0;
background: white;
}
input:focus,
.StripeElement--focus {
border: 1px solid #007ca0;
-webkit-transition: all 150ms ease;
transition: all 150ms ease;
}
</style>