Using standard (text) plus/minus
+ Header-Test (first folder)
- Here you see how text may be continued on the same row when the folder is opened. This is content for the second folder. You can output data with print, echo or like in the next folder, using simple html.
$folder2 = open
+ Third test plain html
Graphic button and a class for content
Header-Test (4th folder) Another test - fifth folder Sixth test plain html