源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>编程字典</title> <style> body { background-color: lightblue; } </style> </head> <body> <h1>Hello World!</h1> <p>这个页面有一个青蓝色背景色!</p> </body> </html>
运行结果