$(document).ready(function() {

var preEls = $('pre');

$('.example-code-link').click(function(e) {
  e.preventDefault();
  $(this).parent().next().slideToggle();
});

// Dynamically add PrismJS class for syntax highlight
preEls.filter('[class*="js"]').find('code').addClass('language-javascript');
preEls.filter('.css').find('code').addClass('language-css');

});