when copying - code in one line

[6pm]

Hello. My site - http://template.promo-gear.itembridge.com/docs/
Plugin works, but the code without hyphens line, all in one line. How do I fix this?

My code:
// initialize zeroclipboard plugin

$('.copy-btn').on('copy', function(e) {
e.clipboardData.clearData();
e.clipboardData.setData("text/plain", $(this).closest('div').find('.copied').text());
showAlertMsg();
e.preventDefault();
});