We have completed multiple H5 creative and development projects. Among them, the live broadcast supporting H5 simulates the WeChat Moments experience, supporting multi-terminal login to browse celebrities' updates and interact via comments. Through a customized second screen, it achieves real-time on-site linkage, helping the program achieve excellent results. Furthermore, we urgently delivered the high-concurrency check-in H5 "There are 1.4 Billion Guardians of the Five-Star Red Flag" within 10 hours and deployed it online without errors. With solid technology and efficient execution capabilities, we have gained deep recognition from the client.