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

.dialogContainer {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999999 !important;
    contain: strict;
}

.dialog {
    margin: 0;
    border-radius: 4px;
    -webkit-font-smoothing: antialiased;
    border: 0;
    padding: 0;
    will-change: transform;
    /* Strict does not work well with actionsheet */
    contain: style;
    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);
}

.dialog-fixedSize {
    border-radius: 0;
    max-height: none;
    max-width: none;
}

.dialog-fullscreen {
    /* Needed due to formDialog style */
    position: fixed !important;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0;
    box-shadow: none;
}

@media all and (max-width: 1280px), all and (max-height: 720px) {
    .dialog-fixedSize {
        position: fixed !important;
        top: 0 !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        margin: 0 !important;
        box-shadow: none;
    }
}

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

    .dialog-medium {
        width: 80%;
        height: 80%;
    }

    .dialog-medium-tall {
        width: 80%;
        height: 90%;
    }

    .dialog-small {
        width: 60%;
        height: 80%;
    }

    .dialog-fullscreen-border {
        width: 90%;
        height: 90%;
    }
}

.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: .8;
}