`; var f=document.getElementById('quiz-frame'); var d=f.contentDocument||f.contentWindow.document; d.open();d.write(HTML);d.close(); window.addEventListener('message',function(e){ if(e.data&&e.data.h){f.style.height=(e.data.h+40)+'px';} }); setTimeout(function(){ try{var h=f.contentDocument.body.scrollHeight;if(h>100)f.style.height=(h+40)+'px';}catch(e){} },800); })();