Shortcode
This is an example of some text that has a trigger placed inline, meaning that the trigger does not break the flow of the text. However, when
...However, when [expand tag="span" title="this trigger" targtag="span"]hidden content[/expand] is clicked...
The Roll-Your-Own Method
This is an example of some text that has a trigger placed inline, using the roll-your-own method. However, when this trigger hidden content is clicked and the target is expanded, the target would break the paragraph as a display: block element. Naturally, when the element is collapsed, the inline flow returns.
...However, when <span title="this trigger" class="collapseomatic" id="testme2">this trigger</span><span class="collapseomatic_content" id="target-testme2">hidden content</span>
is clicked...