.modal-popup.newsletter-popup .modal-inner-wrap {
    width: 800px;
}
.newsletter-popup.modal-popup .modal-inner-wrap-left {
    background: #000000 url(https://racktribe.com/pub/media/newsletter/default/Its-all-about-the-Clothes-min.jpg) no-repeat center / cover !important;
}
.modal-popup.newsletter-popup .buttons-container button.subscribe {
    background-color: #a8ece6;
}
.modal-popup.newsletter-popup .buttons-container button.subscribe:hover {
    background-color: #000000;
}
.modal-popup.newsletter-popup .buttons-container button:not(.subscribe) {
    
}
.modal-popup.newsletter-popup .buttons-container button:not(.subscribe):hover {
    background-color: #000000;
}