css/css-flexbox/flexbox-column-row-gap-004.html

<!DOCTYPE html>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0
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<html>
<head>
  <title>CSS Test: Testing percentage gap resolution in flex containers</title>
  <link rel="author" title="Mihir Iyer" href="mailto:miyer@mozilla.com">
  <link rel="help" href="https://drafts.csswg.org/css-align/#column-row-gap">
  <link rel="match" href="flexbox-column-row-gap-004-ref.html">
  <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/5081">
  <meta charset="utf-8">
  <meta name="assert" content="% row-gaps in a flexbox with indefinite block size are treated as 'normal'." />
  <style>
    .flexContainer {
      display: flex;
      border: 2px solid black;
      row-gap: 20%;
      column-gap: 10%;
      align-content: start;
      justify-content: start;
      margin-top: 20px;
    }
    .item {
      border: 1px solid blue;
      background: yellow;
      width: 48px;
      height: 48px;
      flex: none;
    }
    .vertLR {
      writing-mode: vertical-lr;
    }
    .rowWrap {
      flex-flow: row wrap;
    }
    .colWrap {
      flex-flow: column wrap;
    }
    .w50 {
      width: 50px;
    }
  </style>
</head>
<body>
  <div class="flexContainer rowWrap w50">
    <div class="item"></div>
    <div class="item"></div>
  </div>
  <div class="flexContainer colWrap w50">
    <div class="item"></div>
    <div class="item"></div>
  </div>
  <div class="flexContainer vertLR rowWrap">
    <div class="item"></div>
    <div class="item"></div>
  </div>
  <div class="flexContainer vertLR colWrap">
    <div class="item"></div>
    <div class="item"></div>
  </div>
</body>
</html>