Examine the source code of this page. Look at how the heading is created. Look at how the paragraph is created. Do you see the symmetry? Almost all HTML components are bracketed by bookend-like elements called "tags". Do you see that the matching tags are the same except that the second one has a "/"? Welcome to HTML. That is how it looks. Look at how the different parts of this paragraph are written sloppily on separate lines in the source code, but they end up all neat and tidy anyway. What can you conclude?