A paragraph in which the first line is set to the left margin, but all subsequent lines are indented. This is a hanging paragraph. The second and subsequent lines are all indented from the left ...

Text begins as a new paragraph. Level 4 Indented once, Bolded, Capitalized like book title, Ending with a period.Text begins on the same line and continues as a regular paragraph. Level 5 Indented ...

and then indents all the following lines in the paragraph. It's a style commonly used for bibliographies and "works cited" pages in MLA format, and sometimes for creating lists within documents.