nitro-react/src/components/notification-center/NotificationCenterView.scss

.nitro-notification-center-container {
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: calc(100% - #{$toolbar-height});
    z-index: $notification-center-zindex;
    pointer-events: none;

    .nitro-notification-center {
        background-color: $dark;
        height: 100%;
        pointer-events: all;
    }
}

.nitro-alert {
    min-height: 150px;
    max-height: 350px;

    .notification-frank {
        background-image: url('../../assets/images/notifications/frank.gif');
        width:47px;
        height: 85px;
    }

    .notification-text {
        min-width: 250px;
    }

    &.nitro-alert-default,
    &.nitro-alert-motd {
        width: 350px;
        .notification-text {
            min-width: auto;
        }
    }

    &.nitro-alert-moderation,
    &.nitro-alert-alert {
        width: 250px;
        .notification-text {
            min-width: 225px;
        }
    }
}

.nitro-notification-bubble {
    pointer-events: all;
    padding: 6px 5px;
    background-color: rgba($dark,.95);
    box-shadow: inset 0px 5px lighten(rgba($dark,.6),2.5), inset 0 -4px darken(rgba($dark,.6),4);
    font-size: $font-size-sm;

    .bubble-image-container {
        width: 50px;
        height: 50px;
    }
}