.penci-builder-mobile-sidebar-nav.penci-menu-hbg ul.sub-menu {
  padding-left: 20px;  
}

.penci-builder-mobile-sidebar-nav.penci-menu-hbg ul:not(.sub-menu) > li::before {
  float: left;
  content: "\001";
  color: transparent;
  margin-top: 10px;
  padding-left: 20px;
  padding-right: 10px;
  display: inline-block;
  vertical-align: middle;
}

.penci-builder-mobile-sidebar-nav.penci-menu-hbg li:nth-child(1)::before {
  background: no-repeat url('https://miuipolska.pl/wp-content/micons/ic_miui_home_settings.PNG');
  background-size: contain;
}

.penci-builder-mobile-sidebar-nav.penci-menu-hbg li:nth-child(2)::before {
  background: no-repeat url('https://miuipolska.pl/wp-content/micons/ic_battery_settings.PNG');
  background-size: contain;
}

.penci-builder-mobile-sidebar-nav.penci-menu-hbg li:nth-child(3)::before {
  background: no-repeat url('https://miuipolska.pl/wp-content/micons/ic_notification_center.PNG');
  background-size: contain;
}

.penci-builder-mobile-sidebar-nav.penci-menu-hbg li:nth-child(4)::before {
  background: no-repeat url('https://miuipolska.pl/wp-content/micons/ic_settings_dualsim.PNG');
  background-size: contain;
}

.penci-builder-mobile-sidebar-nav.penci-menu-hbg li:nth-child(5)::before {
  background: no-repeat url('https://miuipolska.pl/wp-content/micons/ic_unlock_set_settings.PNG');
  background-size: contain;
}

.penci-builder-mobile-sidebar-nav.penci-menu-hbg li:nth-child(6)::before {
  background: no-repeat url('https://miuipolska.pl/wp-content/micons/ic_system_app_settings.PNG');
  background-size: contain;
}

.penci-builder-mobile-sidebar-nav.penci-menu-hbg li:nth-child(7)::before {
  background: no-repeat url('https://miuipolska.pl/wp-content/micons/ic_sound_settings.PNG');
  background-size: contain;
}

.penci-builder-mobile-sidebar-nav.penci-menu-hbg li:nth-child(8)::before {
  background: no-repeat url('https://miuipolska.pl/wp-content/micons/ic_feedback2.PNG');
  background-size: contain;
}