Most index pages begin with a paragraph with a "lead" style on them. The "lead" style turns the text this weird shade of green and uses a line text decoration.

This is an H3 - H3s should be reserved for the page title - which is inputed by the file structure for all pages (except index pages which have the 'lead' instead).

This is an H3, Italicized  (maybe don't use this... ever.)

This is an H4  - Most pages will use H4s as the headings within the text (which you will edit).  Currently, H4s have a very light top border.

This is an H4 ~ italicized ~ and also bolded!

This is an H5 - H5s are the next heading down. Typically, there should be no page headings larger than the ones at the top... we are establishing importance. But this H5 is kinda lame because it is barely bigger than the regular font... it's just bolded.
This is an H5 ~ italicized! ~ and bolded!
This is an H6 - something different, yes? 
This is an H6 - italicized  And BOLDED  ( Does it seem like you are being yelled at? )

And now for some Lorem Ipsum: (« That's an H4 again!)

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi pellentesque, libero vel feugiat porta, magna mi laoreet ipsum, ut pretium urna urna sed metus. Nulla facilisi.This is a "quote-right". It doesn't work. (Neither does "quote-left"). Aenean ultrices justo lectus, vel mattis dui. Integer nec elit quis risus condimentum suscipit.

This is a "callout left" in the middle of my 1st lorem ipsum paragraph. It added line space above - now my paragraph looks like two paragraphs!

Maecenas erat urna, dignissim et iaculis sit amet, volutpat ut tellus. Donec malesuada posuere sapien, eget tempor nisi ultrices nec. Vestibulum rutrum, metus id laoreet condimentum, dui leo aliquam ligula, a viverra quam velit eget purus. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Nullam justo nisi, porttitor id accumsan id, lacinia id arcu. Praesent feugiat est quis ipsum tincidunt consectetur. Donec ac justo nec leo condimentum venenatis eu sit amet nisi. Cras ultricies aliquet condimentum. Duis varius neque id tellus egestas placerat. Maecenas in dolor urna, vestibulum porttitor nisi. Oh hey... this what happens when you bold paragraph text... and italicize it... and do both!

Quisque pellentesque ipsum ut enim molestie a vestibulum est bibendum. Aliquam vel ullamcorper dui. Vestibulum eget est nec nisi congue vestibulum rutrum sit amet dolor. Nulla nisi sapien, iaculis vel mollis at, fringilla nec est. Praesent consectetur nisl eu mauris consequat id aliquam erat fringilla. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam erat volutpat. In suscipit sollicitudin fermentum.

This is a "callout right" at the beginning of my 3rd lorem ipsum paragraph. (Putting it at the beginning did not mess up my line spacing)

Vivamus suscipit egestas nisi vitae laoreet. Proin eu tristique elit. Suspendisse ut turpis eu magna pharetra pharetra id id odio. Suspendisse a est ut leo ullamcorper condimentum. Pellentesque malesuada iaculis consequat. Sed gravida tortor mattis odio gravida pretium. Aliquam id scelerisque metus. Ut eleifend odio eu sapien adipiscing viverra. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla bibendum consequat luctus. Proin bibendum facilisis vestibulum. Integer non quam ut nisi egestas tempor. In sodales risus eget turpis malesuada fringilla. Quisque interdum dapibus mauris, sit amet venenatis dui aliquam id. Nulla tincidunt vehicula commodo. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.

This is a bulleted list:

  1. You
  2. can
  3. create
  4. a
  5. bulleted
  6. list
  7. very
  8. easily

with the bullet buttons in the input box...the 1,2,3 button will make numbered bullets.  You can also decorate the text with the "B" and "I" buttons... 

Please note: Do not use the "U" button (the U stands for underline)  It is not considered a best practice to underline anything on the web that is not an active link.  (By the way... this little paragraph has a class called "highlight" that I created. But this style has to be added to the HTML. See me if you want to learn how!)