https://joy.videvo.net/videvo_files/video/free/2018-05/large_watermarked/180413_005_China_preview.mp4 Motion Particle Flag Loop China A looping motion background featuring flowing particles arranged to form the flag of China. 1080pbackdropbackgroundChinachinesecountryflagflagslooploopableloopingmotionnationnationalnationsolympicolympicsparticlesStates