#s-lch-widget-25162.s-lch-widget-float.open {
    width: 420px;
    max-height: 700px;
    top: unset;
}

button.s-lch-widget-float-btn {
    border: 0;
    font-size: 18px;
    z-index: 9990;
    border-radius: 60px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, .4);
    float: right;
    padding: 15px !important;
    cursor: pointer;
}