<!DOCTYPE html>
<meta name="viewport" content="width=device-width, minimum-scale=0.5">
<style>
html {
  overflow-y: hidden;
}
html, body {
  margin: 0;
  width: 100%;
  height: 100%;
}
div {
  width: 100%;
  position: absolute;
}
</style>
<div style="background: red; height: 300%;"></div>
<div style="background: green; height: 200%;"></div>
<div style="background: white; height: 100%;"></div>