Let's complete our series of exercises with exercise number seven, go and get the last exercise created,
that is number six and add the Flex Direction property to make the page responsive.
This property will have to be inserted, replacing another property which is inside one of the selectors
inserted in the stylesheets.
Of course, you are supposed to understand by yourself what property I'm talking about and in what selector
this replacement we take place then complete the exercise before checking the solution.