Xenforo forum hareketli bildirim ikonları nasıl oluşturulur?

@keyframes xgtbell {

    0% {
        transform: rotate(0);
    }

    10% {
        transform: rotate(30deg);
    }

    20% {
        transform: rotate(0);
    }

    80% {
        transform: rotate(0);
    }

    90% {
        transform: rotate(-30deg);
    }

    100% {
        transform: rotate(0);
    }

}

@-webkit-keyframes xgtNotificationAnim {
    to {
        box-shadow: 0 0 0 12px rgba(232, 76, 61, 0);
    }
}

@-moz-keyframes xgtNotificationAnim {
    to {
        box-shadow: 0 0 0 12px rgba(232, 76, 61, 0);
    }
}

@-ms-keyframes xgtNotificationAnim {
    to {
        box-shadow: 0 0 0 12px rgba(232, 76, 61, 0);
    }
}

@keyframes xgtNotificationAnim {
    to {
        box-shadow: 0 0 0 12px rgba(232, 76, 61, 0);
    }
}

.badgeContainer--highlighted {
    i {
        &:after {
            animation: xgtbell 1s 1s both infinite;
        }

    }

    border: none;
    box-shadow: 0 0 0 0 rgba(225, 228, 227, 0.7);
    border-radius: 10%;
    background-size: cover;
    background-repeat: no-repeat;
    cursor: pointer;
    -webkit-animation: xgtNotificationAnim 1.25s infinite cubic-bezier(0.66, 0, 0, 1);
    -moz-animation: xgtNotificationAnim 1.25s infinite cubic-bezier(0.66, 0, 0, 1);
    -ms-animation: xgtNotificationAnim 1.25s infinite cubic-bezier(0.66, 0, 0, 1);
    animation: xgtNotificationAnim 1.25s infinite cubic-bezier(0.66, 0, 0, 1);
}