Bugs in Sololearn

Question

The Making a Game tutorial is supposed to develop projects in web (html, css & JS), but there is a lesson on which an example seems to have line codes in html written in language C editor. The link is the following:
https://www.sololearn.com/learning/1140/5155/13736/1

Answer 1

Mailto: [e-mail]

Answer 2

Simba whenever I sent a message to this email, I have never received any response. It seems that no one reads it. I prefer leaving my complaint here.