* This demo is also a guide when you view the source of this page at the same time.

  to insert a picture	drool code	@@ ./demo.jpeg
  	result	@@./demo.jpeg
  to insert an audio and a video	drool code	@@ ./demo.mp3
  		@@ https://videos.cdn.mozilla.net/uploads/mozillaorg/Mozilla_2014_i_am.webm
  	result	@@./demo.mp3
  		@@https://videos.cdn.mozilla.net/uploads/mozillaorg/Mozilla_2014_i_am.webm
  to insert a link	drool code	There is @@ a link to @@ ./demo.webp https://www.google.com/ncr.
  	result	There is @@a link to @@./demo.webp https://www.google.com/ncr.
  to align right	drool code	--- hello
  		—— 你好
  	result	---hello
  		——你好
  “smart” retract	#include <iostream>
  	
  	int main(){
  		std::cout << "Hello World!" << std::endl;
  		return 0;
  }

edit oops I messed up the tabs.