# responsive font size
https://www.w3schools.com/howto/howto_js_slideshow.asp
https://codepen.io/CrocoDillon/pen/fBJxu
https://stackoverflow.com/questions/14431411/pure-css-to-make-font-size-responsive-based-on-dynamic-amount-of-characters

http://jquery-textfill.github.io
http://jquery-textfill.github.io/example/

# java slideshow
https://www.w3schools.com/howto/howto_js_slideshow.asp

# markdown parser
https://gist.github.com/zeffii/2983357