<scroll-view scroll-y style="height: 100%;">
  <view class="green" style="width: 100%; height: 200px; background: green;"></view>
  <view class="red" style="width: 100%; height: 200px; background: red;"></view>
  <view class="yellow" style="width: 100%; height: 200px; background: yellow;"></view>
  <view class="blue" style="width: 100%; height: 200px; background: blue;"></view>
</scroll-view>