Is it possible to globally increase the font on the entire page by +2px?

Question

css

The site has a version for the visually impaired, there is a button - "increase by 2". There are many different font sizes on the site, is it possible to somehow set the condition for all of them to be "initial font size + 2px"?

Answer 1

$('*').each(function(){
  $(this).css('font-size', parseInt($(this).css('font-size')) + 2);
})