Add the <!DOCTYPE html> tag, and an html element with a lang attribute of en .
You seem to have tried to combine both of these steps into one.
You should add the DOCTYPE tag exactly as above and then add a separate html element. Inside the opening tag of the html element you should add a lang attribute with a value of en.
The syntax for adding attribtues is attribute="value".
Hello! @igorgetmeabrain explained that the elements are individual and require separate element entries. < !DOCTYPE html> and below that the < html lang= " as per lesson">