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<!DOCTYPE html> <html> <body> <h1 style="background-color:DodgerBlue;">Hello World</h1> <p style="background-color:Tomato;"> 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>