Paragraphs are defined with the < p> tag. Using this tag automatically adds an extra blank line before and after each paragraph.
The line break is denoted by the < br > tag. This tag is used when you want a line to end, but don't want to start a new paragraph or blank line between paragraphs. Using this tag forces a line break wherever you place it.
Unlike some HTML, paragraph and line break tags do not always need an accompanying end tag.