(function(win, doc){ win.onresize = displayForkMe; function displayForkMe(){ if(Math.max(doc.documentElement.clientWidth, win.innerWidth || 0) > 1350) { var forkMe = doc.getElementById('forkMe'); if(forkMe){ forkMe.parentNode.removeChild(forkMe); } var frag = doc.createDocumentFragment(); var cont = doc.createElement('div'); cont.id = 'forkMe'; cont.innerHTML = 'Fork me on GitHub'; frag.appendChild(cont); doc.body.appendChild(frag); } } displayForkMe(); })(window, document);