iframe#chat {
    position: fixed;
    left: 0px;
    bottom: 0px;
    z-index: 9999;
    padding: 0 0 0 7px;
}
iframe#chat.close {
    height: 102px;
}

iframe#chat.open {
    height: 500px;
}

iframe {
    border: none !important;
}