index.css

#relative-newsletter-signup {
	position: fixed;
	background: rgba(255, 255, 255, 0.68);
	display: none;
	justify-content: center;
	align-items: center;
	top: 0;
	bottom: 0;
	left: 0;
	right:0;
	text-align:center;
	z-index:2001;
}

.relative-newsletter-modal {
	display:flex;
	max-width:750px;
	border-radius: 10px 0 0 10px;
    box-shadow: 4px 9px 20px -4px rgba(0,0,0,0.3);
	overflow: hidden;
	
}

.relative-newsletter-modal__section {
	background: #ffffff;
	position: relative;
	display: flex;
    flex-direction: column;
    justify-content: center;
}

.relative-newsletter-modal__section:first-of-type {
	width: 40%;
}

.relative-newsletter-modal__section:last-of-type {
	width: 60%;
	padding: 0px 40px;
	padding-bottom: 20px;
}

.relative-newsletter-modal__form,
.relative-newsletter-modal__label {
	display:flex;
	flex-direction: column;
}

.relative-newsletter-modal__input,
.relative-newsletter-modal__btn {
	padding: 10px;
}

.relative-newsletter-modal__btn,
.relative-newsletter-modal__btn--close:hover {
	background: #263994;
	color: #ffffff;
}

.relative-newsletter-modal__btn:hover,
.relative-newsletter-modal__btn--close,
.relative-newsletter-modal__label-text,
.relative-newsletter-modal__heading.h3,
h3.relative-newsletter-modal__heading {
	background: #ffffff;
	color: #263994;
}

.relative-newsletter-modal__btn {
	border: 1px solid #263994;
	text-transform: uppercase;
	letter-spacing: 0.1rem;
	cursor: pointer;

	transition: 0.5s all ease-in-out;
}

.relative-newsletter-modal__btn--close {
	position: absolute;
	top:0;
    right: 0;
    padding: 5px;
    margin: 10px;
    width: 30px;
    height: 30px;
	line-height: 20px;
}

.relative-newsletter__copy h2 {
	margin-top: 1.5rem !important;
}

.relative-newsletter-modal__label-text {
	font-weight: 900;
	font-size: 1.2rem;
	text-align: left;
}

@media screen and (max-width: 750px) {
	.relative-newsletter-modal {
		margin:10px;
	}

	.relative-newsletter-modal__section:first-of-type {
		display: none;
	}

	.relative-newsletter-modal__section:last-of-type {
		width: 100%;
		min-height: 500px;
		padding-top: 10px;
		padding-bottom: 10px; 
	}
}