Saturday marks China's traditional Tomb-sweeping Day, or Qingming Festival.
It is one of the most important festivals for Chinese when people pay tribute to the dead and worship their ancestors by visiting tombs and making offerings.
Traditionally, these tributes involve burning incense and paper money, which causes fire risks and air pollution.
This year many Chinese choose online services to mourn their deceased loved ones to reduce the environmental costs and the risk of cross-infection amid the COVID-19 outbreak.
