xxxxxxxxxx<html><head> <meta charset="utf-8"> <title>W3Cschool教程(w3cschool.cn)</title> <style> body{background-image:url(/statics/images/course/pulpit.jpg); background-repeat:no-repeat; background-position:center; background-attachment: fixed} </style></head><body"> <p>拉动页面时背景图不动</p> <p style="padding-top:1800px;">拉动页面时背景图不动</p></body></html>