The most useful application with 21 lessons on the basics of HTML, which are presented in an accessible, simple, understandable form. After completing the lessons, it is possible to check the percentage of learned information with the help of a test. There is also a practical lesson on creating a site "from A to Z". The application is so useful that it even offers cheat sheets! You will learn, consolidate your knowledge, practice, and with cheat sheets-tips you will never forget the knowledge you have gained!