Here’s the CSS code I’ve used to make some changes to the Email Optin Module:

@media (min-width:768px) {

	p.et_pb_newsletter_field.et_pb_contact_field_last.et_pb_contact_field_last_tablet.et_pb_contact_field_last_phone {
		flex-basis: 48.5%;
	}
	
}

.et_pb_newsletter_success {
	text-align: center;
	border: 1px #000 solid;
	padding: 40px 20px;
}

.et_subscribe_loader {
	background: url(https://playground.divilover.com/wp-content/uploads/2021/03/ajax-loader.gif);
}