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<!DOCTYPE html> <html> <head> <style> html { background: url(/i/photo/tiyugongyuan.jpg) no-repeat center fixed; background-size: cover; } body { color: white; } </style> </head> <body> <h1>完整页面的背景图像</h1> <p>Shanghai is one of the four direct-administered municipalities of the People's Republic of China. Welcome to Shanghai! The city is located on the southern estuary of the Yangtze, with the Huangpu River flowing through it.</p> </body> </html>