#cf_check_popup {
    background: #fff;
    border: 3px solid #aaa;
    padding: 12px;
}
#cf_check_popup input {
    margin: 6px 0;
}
#cf_check_popup #yui-gen0-button {
    margin-right: 6px;
    background: #000;
    color: #fff;
    font-weight: bold;
    padding: 3px 6px;
}
#cf_check_popup #yui-gen1-button {
    background: #aaa;
    font-weight: bold;
    padding: 3px 6px;
}
.yui-dialog .underlay {
    background: rgba(0,0,0,0.7);
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
}