.webim_button {
    position: fixed;
    right: 15px;
    bottom: 75px;
    z-index: 11100;
    width: 48px;
    height: 48px;
}

#webimBtn.chatBtnIphone {
    bottom: 75px;
}

#anchor.anchorBtnIphone {
    bottom: 135px;
}

.webim_button.webimIphoneBtn {
    bottom: 75px
}

@media (max-width: 395px) and (max-height: 665px) {
    .webim_button.webim-registration {
        bottom: 50px
    }

    .webim_button.webimIphoneBtn.webim-registration {
        bottom: 50px
    }
}

@media (max-width: 365px) and (max-height: 615px) {
    .webim_button.webim-registration {
        bottom: 20px
    }
}

#anchor.chatBtnIphone {
    bottom: 130px;
}