Hi, I'd like to have collapsible source code blocks in my org document exported to HTML. To collapse and restore I have used[1]. The library requires a link (or a button) with appropirate properties. A link needs to point (href) to a block and have additional custom data-toggle property. On Debian9/Emacs 24/org-mode 8.x I was able to craft such links by hand #+HTML: Show #+NAME: code1 #+BEGIN_SRC python return 42 #+END_SRC On Debian10/Emacs26/org-mode 9.1.9 src blocks with a NAME get automatically generated id-s (org-export-get-reference) and I can see no way to determine href in my HTML snippet. (ATTR_HTML before org-mode link does not work as advertised in the manual either). Is there any way to generate a link (or a button) for every code block with matching href/id you can recommend? [1] https://getbootstrap.com/docs/4.2/components/collapse/ Kind regards, -- Było mi bardzo miło. --- Rurku. --- ... >Łukasz< --- To dobrze, że mnie słuchasz.