.image-preview-trigger {
    position: relative;
}

.image-preview-popup {
    width: 400px;
    height: 400px;
    max-width: 400px;
    max-height: 400px;
}

.image-preview-popup > img {
    width: 100% !important;
    height: auto !important;
    padding: 0 !important;
    margin: 0 !important;
}