Hello, @Diollo Store,
Well, Sorry for the inconvenience but that site was in your old topics, so I thought it was your site. sorry for that.
1. For making the width smaller, Please copy and paste the below-given CSS code to XStore >> Theme Settings >> Theme Custom CSS >> Global CSS and check back to your site after removing the browser cache.
.woocommerce-checkout .before-checkout-form input {
width: 50% !important;
display: block !important;
}
.woocommerce-checkout .et-facebook-login-wrapper.text-center {
width: 50% !important;
}
Screenshot: https://postimg.cc/MMvnWZ4F
2. Those icons are from the plugins/extensions the customer used for the payment purposes on the site, those are not from our theme.
Regards 8Themes Team.