.header{width: 932px;height: 147px;background: url(C:\Users\suddenlyq\Desktop\picture\index.png);}
It should be a problem with your image path
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
It should be a problem with your image path