<!DOCTYPE html> <html> <head> <meta charset=utf-8> <style type="text/css"> * { margin: 0; padding: 0; } img{ position:absolute; left:0px; top:0px; z-index:-1; } </style> </head> <body> <h1>The countdown to Christmas starts here.</h1> <img src="https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fuploads.xuexila.com%2Fallimg%2F1912%2F1135-191202143454.jpg&refer=http%3A%2F%2Fuploads.xuexila.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=jpeg?sec=1639984107&t=eca951193e736a17eb96278117bcfb1f" width="100"> <p>由于图像的 z-index 是 -1,因此它在文本的后面出现。</p> </body> </html>