Not a good responsive website

I tried freecodecamp before two years and it was a good example for responsive website. I was able to read, write the code and seeing the results on my iphone. However, I have tried freecodecamp recently again by my iphone but unfortunately I could not read the lesson, write the code and see the results well.

I hope that you make freecodecamp more friendly with smartphone size as before.

Ahmad Alawami.