I want to expand a line or a text in Confluence. For example, if I write:
Check out here if it will work for your product
When you click on it, it expands and shows more text.
Is that possible?
Yes, this neat features is one of the other macros in your menu. Go to the + in your edit menu above and scroll down to "oher macros". There you search for the Expand macro.
In this link you can also find the complete documentation from Atlassian about this cool feature: https://confluence.atlassian.com/doc/expand-macro-223222352.html