.viber_phone_button {
    position: fixed;
    bottom: 7.7%;
    right: 2.5%;
    width: 80px;
    height: 80px;
    background-color: #8e24aa;
    border-radius: 50%;
    z-index: 99;
}
.telegram_phone_button {
    position: fixed;
    bottom: 7.7%;
    right: 7.5%;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    z-index: 99;
}
.viber_button_img {
    position: relative;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@media (max-width: 980px) {

    .telegram_phone_button {
        position: fixed;
        bottom: 7.7%;
        right: 7.5%;
        width: 80px;
        height: 80px;
        border-radius: 50%;
        z-index: 99;
    }
    .viber_phone_button {
        position: fixed;
        bottom: 9%;
        right: 7%;
        width: 65px;
        height: 65px;
        background-color: #8e24aa;
        border-radius: 50%;
        z-index: 99;
        transition: all 0.5s;
    }
    .viber_button_img {
        position: relative;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 40px;
        height: 40px;
        transition: all 0.5s;

    }
}