.online-box__btn {
    z-index: 10000;
    box-sizing: border-box;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    position: fixed;
    right: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
}

.online-box__btn_telegram {
    bottom: 270px;
    background-color: rgba(52, 170, 223, .8);
}

.online-box__btn_whatsapp {
    bottom: 160px;
    background-color: rgba(75, 225, 90, .8);
}

.online-box__btn_whatsapp img {
    width: 73px;
}

.online-box__btn_telegram img {
    width: 50px;
    position: relative;
    right: 3px;
}