@keyframes pulsejg1 {
    0% {
        transform: scale(.6);
        opacity: 0;
    }
    50% {
        transform: scale(.6);
        opacity: 0;
    }
    60% {
        transform: scale(.9);
        opacity: .1;
    }
    70% {
        transform: scale(1.1);
        opacity: .25;
    }
    80% {
        transform: scale(1.25);
        opacity: .1;
    }
    100% {
        transform: scale(1.4);
        opacity: 0;
    }
}

.echbay-sms-messenger div.phonering-alo-alo,
.echbay-sms-messenger div.phonering-alo-sms,
.echbay-sms-messenger div.phonering-alo-zalo,
.echbay-sms-messenger div.phonering-alo-messenger {
    position: relative;
    width: 60px;
    height: 60px;
    margin: 10px 0;
}

.echbay-sms-messenger div.phonering-alo-alo:before,
.echbay-sms-messenger div.phonering-alo-sms:before,
.echbay-sms-messenger div.phonering-alo-zalo:before,
.echbay-sms-messenger div.phonering-alo-messenger:before {
    content: "";
    position: absolute;
    width: 40px;
    height: 40px;
    margin: auto;
    z-index: 0;
    opacity: 0;
    border: 3px solid rgba(255,255,255,.5);
    animation: pulsejg1 2s linear infinite;
    border-radius: 999px;
    box-shadow: 0px 0px 15px 10px #000;
    box-sizing: border-box;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.echbay-sms-messenger {
    width: 60px;
    text-align: center;
    left: 20px;
    position: fixed;
    bottom: 10%;
    z-index: 999;
}

.echbay-sms-messenger a {
    display: block;
    width: 100%;
    height: 100%;
    line-height: 60px;
    color: transparent;
}

.echbay-sms-messenger div {
    background: center no-repeat;
    background-size: 65%;
    border-radius: 50%;
    box-shadow: 0 3px 10px #888;
}

.echbay-sms-messenger div.phonering-alo-alo {
    background-color: #0AB124;
}

.echbay-sms-messenger div.phonering-alo-sms {
    background-color: #f60;
}

.echbay-sms-messenger div.phonering-alo-zalo {
    background-color: #0084FF;
}

.echbay-sms-messenger div.phonering-alo-messenger {
    background-color: #0084FF; /* Adjust if you need a different shade for Messenger */
}