/* 横線を追加 */
#customize-control-uki_full_flat {
  border-bottom: 1px solid #ccc!important;
  padding-bottom: 10px!important;
  margin-bottom: 10px!important;
}

#customize-control-uki_site_name_text_color{
  border-bottom: 1px solid #ccc!important;
  padding-bottom: 10px!important;
  margin-bottom: 10px!important;
}

#customize-control-uki_footer_bg_color {
  border-bottom: 1px solid #ccc!important;
  padding-bottom: 10px!important;
  margin-bottom: 10px!important;
}