Insert single line break in post
When composing posts and pages with the Rich Text editor, keying the Enter or Return key will add a paragraph break. A paragraph break has a greater line height, similar to a double space. In some cases, you may prefer to add a single line break.
To add single line break, key Shift and Enter at the same time on your keyboard. The Shift+Enter combo places the <br /> HTML tag indicating a single line break.
A single line break may be used when composing poetry, lists, and recipes.