.customer_service {
    position: fixed;
    bottom: 150px;
    right: 15px;
    width: 48px;
    height: 48px;
    margin-top: 16px;
    background-color: #ffffff;
    border-radius: 50%;
    box-shadow: 0px 2px 0px 0px rgba(0, 0, 0, 0.02);
    border: solid 1px #e8e8e8;
    cursor: pointer;
    background: #fff url('../img/customer.svg') no-repeat center center/24px 24px;
}

.customer_service:hover {
    border: 1px solid #195090;
}
.service_text {
    position: fixed;
    bottom: 120px;
    right: 10px;
}

.service_text:hover {
    color: #195090;
    cursor: pointer;
}

.back_to_top {
    position: fixed;
    bottom: 110px;
    right: 15px;
    width: 48px;
    height: 48px;
    margin-top: 16px;
}