My code Marking up a letter (codepen.io)
I really appreciate the help you can offer me. I want them to be strict any mistakes or something that can improve.
I used the WS3 Validator and I fixed a lot of bugs. I no longer get any errors, but if you can tell me that I can improve, regarding the readability of the code, indentation and anything else that you would do better, I would greatly appreciate it.