Hello, please how can I do a comment about an challenge question ???

Question

I have learn on the course this <p align="center"></p> but I see this<p align='center'></p> on the challenge

Answer 1

Nothing is wrong with that. You just have to know that there are single quotes and double quotes.
' ' = single quotes
" " = double quotes
In the lesson, double quotes were used but in the challenge question, single quotes were used.

Answer 2

use
"" double quotes instead '' single quotes

Answer 3

Ok thank for the precision

Answer 4

" " string
' ' character