html, body {
  height: 100%;
  overflow: hidden;
  -ms-overflow-style: none;
  overflow-y: auto;
}
html.complete, body.complete {
  overflow: visible;
}

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

@media screen and (max-width: 767px) {
  html, body {
    -ms-overflow-style: none;
  }
}