.woocommerce_options_panel,
.wc-metaboxes-wrapper{

  .xtfw-title-separator {
    padding: 15px 15px 15px;
    border-bottom: 1px solid #eaeaea;
    margin: 0;
  }
}

.wc-metaboxes-wrapper {

  .options_group {
    border-top: 1px solid #fff;
    border-bottom: 1px solid #eee;
    clear: both;
  }

  .xtfw-title-separator{
    padding: 15px 0 15px;
  }
}