This article has some CSS snippets that you can add to your theme.
Add the code snippet to your theme.liquid file right after the first <head> tag at the top of the page (see screenshot below). If you need more instructions click the link below.
CSS snippets
To topChange spacing above and below the terms and conditions checkbox
<style>
.terms-relentless {
/* Change spacing above and below the terms and conditions checkbox */
margin-bottom: 14px !important;
margin-top: 0px !important;
}
</style>