#custom_fc_button {
    bottom:15px;
    left:15px;
    position:fixed;
    z-index:2147483611;
    background-color: #f6f6f6;
    border: 1px solid #5e5e5e;
    border-radius: 50%;
    visibility:hidden;
}

#custom_fc_button #open_fc_widget {
    cursor: pointer;
}

#custom_fc_button #open_fc_widget #imageicon {
    width: 40px;
    height: 35px;
    top: 2px;
    position: relative;
}