Board Thread:Support Requests - Getting Started/@comment-27704998-20160604193218/@comment-26611127-20160605011721

The difference between span and div is that a span element is in-line and usually used for a small chunk of HTML inside a line (such as inside a paragraph) whereas a div (division) element is block-line (which is basically equivalent to having a line-break before and after it) and used to group larger chunks of code.

So yeah, use span if you don't want a line break.