html, body {
  scrollbar-width: none;        
  -ms-overflow-style: none;     
  overflow: auto;
}

html::-webkit-scrollbar, body::-webkit-scrollbar {
  display: none;                
}






/* class modal */


.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 999;
}

.modal-content {
  background: white;
  padding: 20px;
  border-radius: 6px;
}

.hidden {
  display: none;
}

.close-btn {
  display: inline-block;
  margin-top: 10px;
  background: #ccc;
  cursor: pointer;
  width: 100%;
  text-align: center;
  font-size: 18px;
  padding: 11px;
}