@keyframes opacity-animation {
    0% {
        opacity: 0
    }
}

@keyframes pulse-animation {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: .8
    }
    70% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(3)
    }
    to {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0
    }
}

.pulse:before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: #62bd19;
    border-radius: 100%;
    opacity: .5;
    transform: translate(-50%,-50%) scale(3);
    animation: pulse-animation 3s infinite;
}

.pulse {
    position: relative;
    display: inline-block;
    vertical-align: 1px;
    width: 8px;
    height: 8px;
    margin: 0 6px;
    background: #62bd19;
    color: transparent;
    border-radius: 100%;
    flex: 0 0 auto;
    animation: opacity-animation 0s linear;
&.red {
    background: #e60000;
}
&.orange {
    background: #ff9900;
}
&.green {
    background: #62bd19;
}
}
.rank-item {
    transition: background-color 7.0s ease;
}