.stickyChatAccp iframe {
    border: 1px solid #eee;
    height: 0;
    transition: height 1s ease-out;
    display: none;
}
.accpChatActive iframe{
    height: 500px;
    width: 435px;
    display: block;
    transition: height 1s ease-in;
}
.accpChatNotActive iframe{
    display: none;
    height: 0;
    transition: height 1s ease-out;
}