This must be uploaded to the server for testing

Question

Does this have to be uploaded to the server for testing? . I get an error locally.

Answer 1

should be! I didn't open the server before and couldn't see the page effect.

I thought I copied the wrong code and checked it several times, but it still didn't work.

So I copied it twice again, but still couldn't see the effect.

When I was doubting my life, I saw you say this, so I opened the server and looked at this page. The effect was exactly the same as the teacher's.

Answer 2

It's a problem with your code. Let's take a closer look.