#whatsappchat.top-left {
    position: fixed;
    top: 0;
    left: 0;
    margin-top: 10px;
    margin-left: 10px;
    width: 50px;
}
#whatsappchat.top-right {
    position: fixed;
    top: 0;
    right: 0;
    margin-top: 10px;
    margin-right: 10px;
}
#whatsappchat.bottom-left {
    position: fixed;
    bottom: 0;
    left: 0;
    margin-bottom: 10px;
    margin-left: 10px;
}
#whatsappchat.bottom-right {
    position: fixed;
    bottom: 0;
    right: 0;
    margin-bottom: 10px;
    margin-right: 10px;
    z-index: 1;
    width: 50px;
    background: #20b038;
    padding: 10px;
}
div#whatsappchat {
    z-index: 1;
}