html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
body {
  position: relative;
  padding: 10px;
  box-sizing: border-box;
}

.container {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  border: 1px solid #ccc;
  border-radius: 10px;
  position: relative;
  overflow: scroll;
  overscroll-behavior: none;
  scrollbar-width: none;
}

.overscroll {
  position: relative;
  width: 100%;
  height: 3500px;
}

.sticky {
  position: sticky;
  top: 0;
  left: 0;
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#scroll {
  position: absolute;
  padding: 20px;
}