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<!DOCTYPE html> <html> <body> <h3 style="color:Tomato;">Hello World</h3> <p style="color:DodgerBlue;">Shanghai is one of the four direct-administered municipalities of the People's Republic of China. Welcome to Shanghai!</p> <p style="color:MediumSeaGreen;">The city is located on the southern estuary of the Yangtze, with the Huangpu River flowing through it.</p> </body> </html>