function getElements(className){ 
return Array.from(document.getElementsByClassName(className)); 
} 
window.onload = function (){ 
document.body.clientWidth; 
getElements('remove').forEach(function (e){ 
e.remove(); 
} 
); 
getElements('remove-after').forEach(function (e){ 
e.parentNode.removeChild(e.nextSibling); 
} 
); 
} 
;