<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>