源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>编程字典</title> <style> h1, h2, p { text-align: center; color: red; } </style> </head> <body> <h1>Hello World!</h1> <h2>小标题!</h2> <p>这是一个段落.</p> </body> </html>
运行结果