So the text now has been changed, as has the background. This is done for the whole page. But sometimes you only want to change the color on one word alone, or a set of words. The font tag can also alter size. And can have more than one attribute.
Another method of handling special formatting if 'preformatted'.
Block quotes insets the text a set distance on each side. Using the horizontal ruler inside this indentation can add to the effect.
Everything between the opener and closer will be indented, and handled according to whatever tags are enclosed.
Preformatted is the only time HTML will 'honor' indents and spacings.
So that this is one method of getting the proper indentation on a line for paragraphs
rather than using the paragraph tag and inserting blank lines to denote a paragraph's beginning and end.
The regular tags will still apply within the preformatted area.
But it will appear slightly different from the text outside the preformatted area.