I don’t know what you mean by “When jumping to the next page, I found that the navigation bar of the next page is dark.” I cloned your sample project and ran it, and everything seemed normal. Yes, the second and third page navigation bars are all fixed yellow, and there is no "dark patch".
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
I don’t know what you mean by “When jumping to the next page, I found that the navigation bar of the next page is dark.” I cloned your sample project and ran it, and everything seemed normal. Yes, the second and third page navigation bars are all fixed yellow, and there is no "dark patch".