源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>编程字典</title> <style> #para1 { text-align: center; color: red; } </style> </head> <body> <p id="para1">Hello World!</p> <p>这个段落不受样式影响。</p> </body> </html>
运行结果