jellyfin-web/dashboard-ui/bower_components/emby-webcomponents/dialoghelper/dialoghelper.css

.dialog {
    margin: 0;
    border-radius: 1px;
    z-index: 999999 !important;
    position: fixed;
    -webkit-font-smoothing: antialiased;
    box-shadow: 0 16px 24px 2px rgba(0, 0, 0, 0.14), 0 6px 30px 5px rgba(0, 0, 0, 0.12), 0 8px 10px -5px rgba(0, 0, 0, 0.4);
    height: auto;
    border: 0;
    padding: 0;
    will-change: transform;
    contain: style;
}

.dialog-fixedSize {
    position: fixed !important;
    top: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    margin: 0 !important;
    border-radius: 0 !important;
    max-height: none !important;
    max-width: none !important;
    width: auto;
}

.centeredDialog {
    top: 50%;
    left: 50%;
    max-width: 70%;
    max-height: 84%;
}

@media all and (min-width: 1280px) and (min-height: 720px) {

    .dialog-medium {
        top: 10% !important;
        bottom: 10% !important;
        left: 10% !important;
        right: 10% !important;
    }

    .dialog-small {
        top: 10% !important;
        bottom: 10% !important;
        left: 20% !important;
        right: 20% !important;
    }
}

@media all and (min-width: 1280px) and (min-height: 720px) {

    .dialog-fullscreen-border {
        top: 5% !important;
        bottom: 5% !important;
        left: 5% !important;
        right: 5% !important;
    }
}

.noScroll {
    overflow-x: hidden !important;
    overflow-y: hidden !important;
}

.dialogBackdrop {
    background-color: #000;
    opacity: 0;
    position: fixed !important;
    top: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    margin: 0 !important;
    z-index: 999999 !important;
    transition: opacity ease-out 0.2s;
}

.dialogBackdropOpened {
    opacity: .6;
}