Juan Manuel Macías writes:

> If you want to pass the class or id 'manually' to each link, and thus

> have more control, you can evaluate this other version, where the class

> or id would be added at the end of the link description, after (for

> example) "!style":

PS: Sorry, this is the correct code:

  (org-link-set-parameters "button"

   :face '(:foreground "green4" :underline t)

   :follow (lambda (path) (browse-url path))

   :export (lambda (path desc backend)

     (when (eq backend 'html)

       (let ((style (if (string-match "\\(!style\\)\\(.+\\)" desc)

(match-string 2 desc)

       ""))

      (desc (replace-regexp-in-string "\\(!style .+\\)" "" desc)))

(format "<form><button %s

   formaction=\"%s\">%s</button></form>" style

   path desc)))))

Example:

[[button:http://www.sambanya.com/artgallery.html][Art Gallery Page Link !style class="mybutton"]]

== HTML ==>

<p>

<form><button  class="mybutton" formaction="http://www.sambanya.com/artgallery.html">Art Gallery Page Link </button></form>

</p>