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I also use Firefox. The default background color of Firefox is black. It doesn’t matter. Just look at the verification code area.
Are you using Firefox? Mine is also black, which is normal. Only the picture is like that, and the page still has a white background.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
I also use Firefox. The default background color of Firefox is black. It doesn’t matter. Just look at the verification code area.
Are you using Firefox? Mine is also black, which is normal. Only the picture is like that, and the page still has a white background.