I am also a beginner, and I have two understandings about this problem
The first one: the picture path, you need to make sure that the picture path is indeed correct, and generally we use relative paths instead Non-absolute path
Second: Your div does not define width and height, so I personally think it is normal that the background is not displayed
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
I am also a beginner, and I have two understandings about this problem
The first one: the picture path, you need to make sure that the picture path is indeed correct, and generally we use relative paths instead Non-absolute path
Second: Your div does not define width and height, so I personally think it is normal that the background is not displayed
Picture background Did you put the C drive?
The only reason why the background does not appear is that the path is incorrect. Check the path.