<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#pagination">
<div style="width: 100px; height: 100px; columns: 2; column-fill: auto; column-gap: 0;">
  <div style="display: flex; flex-direction: column; flex-wrap: wrap; height: 200px;">
    <div style="height: 50px; width: 25px; background: mediumaquamarine;"></div>
    <div style="height: 50px; width: 25px; background: magenta;"></div>
    <div style="height: 50px; width: 25px; background: maroon;"></div>
    <div style="heig