The exercise number four, that is the first exercise as far as the stylesheets enables us to create
a ceasefire linked to the Web page, you create the exercise.
Number three, therefore, now please go ahead.
Creating a new find where to insert all the various classes to define at the same time.
Also in the age HTML five, therefore do not use type selectors, but attribute is class to every tag
to then associate background colors and font insert at border and another bottle margine to header it
border and an outer top margin to futer and insert in margins to Divx and section one done this refresh.
So to be able to see your life result in the browser.