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

.formDialog {
    display: flex;
    flex-direction: column;
    position: relative;
}

.formDialogHeader {
    padding: 1em .5em;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.formDialogHeader, .formDialogFooter {
    background-color: #222326;
}

.formDialogHeaderTitle {
    margin-left: .25em;
    /* In case of h1, h2, h3 */
    margin-top: 0;
    margin-bottom: 0;
}

.formDialogContent {
    flex-grow: 1;
}

.dialogContentInner {
    padding: .5em 1em 20em 1em;
}

.dialogContentInner-mini {
    padding-bottom: 10em;
}

.dialog-content-centered {
    margin: 0 auto;
    max-width: 53em;
}

.dialogContentTitle {
    margin-top: 1em;
}

.formDialogFooter {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    padding: 1.25em 1em;
    /* Without this emby-checkbox is able to appear on top */
    z-index: 1;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.formDialogFooterItem {
    margin-left: .5em !important;
    margin-right: .5em !important;
    flex-grow: 1;
    text-align: center;
    flex-basis: 0;
}

@media all and (min-width: 800px) {

    .formDialogFooterItem {
        max-width: 80%;
    }

    .dialogContentInner {
        padding-left: 1.5em;
        padding-right: 1.5em;
    }
}

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

    .formDialogFooterItem {
        max-width: 70%;
    }

    .dialogContentInner {
        padding-left: 2em;
        padding-right: 2em;
    }
}