.popup-banner {
    background-color: rgba(0, 0, 0, .8);
    height: 100%;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 10;
}

.popup-banner-box {
    display: inline-block;
    font-size: 0;
    height: 100%;
    line-height: 0;
    text-align: center;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
}
.popup-banner-box:before {
    content: "";
    display: inline-block;
    height: 100%;
    line-height: 100%;
    vertical-align: middle;
}

.popup-banner-image {
    max-height: 100%;
    max-width: 100%;
    vertical-align: middle;
}
.popup-banner-image-mobile {
    display: none;
}

.popup-banner-close {
    cursor: pointer;
    display: block;
    height: 32px;
    opacity: .7;
    position: absolute;
    right: 15px;
    top: 15px;
    width: 32px;
}
.popup-banner-close:before,
.popup-banner-close:after {
    background-color: #ddd;
    content: '';
    display: block;
    height: 33px;
    position: absolute;
    left: 15px;
    width: 3px;
}
.popup-banner-close:before {
    transform: rotate(45deg);
}
.popup-banner-close:after {
    transform: rotate(-45deg);
}

@media screen and (max-width: 767px) {
    .popup-banner-image-desktop {
        display: none;
    }
    .popup-banner-image-mobile {
        display: inline;
    }
}

@media screen and (min-width: 1025px) {
    .popup-banner-close:hover {
        opacity: 1;
    }
}