Мигающая онлайн точка

.message-avatar-wrapper {
    .message-avatar-online {
        position: absolute;
        bottom: 2px;
        right: 2px;
        top: unset;
        left: unset;
        border: 4px solid #1d9e4b;
        border-radius: 50%;
        animation-name: pulse;
        animation-duration: 1.5s;
        animation-iteration-count: infinite;
    }
}

@keyframes pulse {
    0% {
        transform: scale(0.9);
        opacity: 0.5;
    }
    50% {...