.o-mail-MessageSeenIndicator {
    &.o-hasEveryoneSeen {
        color: var(--mail-MessageSeenIndicator-hasEveryoneSeenColor, lighten($primary, 20%));
    }

    i {
        // fa icons have a line height of 1 by default which breaks alignment
        line-height: 1.5;
    
        &.o-second {
            top: -3px;
        }
    }
}