ui/media/css/image-modal.css

#viewFullSizeImgModal {
    --popup-padding: 24px;
    position: sticky;
    padding: var(--popup-padding);
    pointer-events: none;
    width: 100vw;
    height: 100vh;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    z-index: 1001;
}

#viewFullSizeImgModal > * {
    pointer-events: auto;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

#viewFullSizeImgModal .backdrop {
    max-width: unset;
    width: 100%;
    max-height: unset;
    height: 100%;
    inset: 0;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1001;
    opacity: .5;
    border: none;
    box-shadow: none;
    overflow: hidden;
}

#viewFullSizeImgModal .content {
    min-height: initial;
    max-height: calc(100vh - (var(--popup-padding) * 2));
    height: fit-content;
    min-width: initial;
    max-width: calc(100vw - (var(--popup-padding) * 2));
    width: fit-content;
    z-index: 1003;
    overflow: visible;
}

#viewFullSizeImgModal .image-wrapper {
    min-height: initial;
    max-height: calc(100vh - (var(--popup-padding) * 2));
    height: fit-content;
    min-width: initial;
    max-width: calc(100vw - (var(--popup-padding) * 2));
    width: fit-content;
    box-sizing: border-box;
    pointer-events: auto;
    margin: 0;
    padding: 0;
    overflow: auto;
}

#viewFullSizeImgModal img.natural-zoom {
    max-width: calc(100vh - (var(--popup-padding) * 2) - 4px);
    max-height: calc(100vh - (var(--popup-padding) * 2) - 4px);
}

#viewFullSizeImgModal .content > div::-webkit-scrollbar-track, #viewFullSizeImgModal .content > div::-webkit-scrollbar-corner {
    background: rgba(0, 0, 0, .5)
}

#viewFullSizeImgModal .menu-bar {
    position: absolute;
    top: 0;
    right: 0;
    padding-right: var(--scrollbar-width);
}

#viewFullSizeImgModal .menu-bar .tertiaryButton {
    font-size: 1.2em;
    margin: 12px 12px 0 0;
    cursor: pointer;
}