css/css-flexbox/flexbox-column-row-gap-001-ref.html

<!DOCTYPE html>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0
-->
<!--
     Reference for the correctness of gaps in horizontal and vertical multi-line
     flex containers.
-->
<html>
<head>
  <title>Reference: Testing row and column gaps in horizontal and vertical multi-line flex containers with the space-around property and auto margins</title>
  <link rel="author" title="Mihir Iyer" href="mailto:miyer@mozilla.com">
  <meta charset="utf-8">
  <style>
    .outerBox {
      width: 200px;
      height: 220px;
      border: 1px solid black;
      float: left;
    }
    .flexContainer {
      display: flex;
      align-content: space-around;
      justify-content: space-around;
    }
    .rowNoWrap {
      flex-flow: row nowrap;
    }
    .columnNoWrap {
      flex-flow: column nowrap;
    }
    .item {
      border: 1px solid blue;
      background: lightblue;
      width: 28px;
      height: 28px;
    }
    .autoLBMargins {
      margin-left: auto;
      margin-bottom: auto;
    }
    .autoBMargin {
      margin-bottom: auto;
    }
    .right20 {
      margin-right: 20px;
    }
    .bottom40 {
      margin-bottom: 40px;
    }
    .tb30100 {
      margin-top: 30px;
      margin-bottom: 100px;
    }
    .lr3080 {
      margin-left: 30px;
      margin-right: 80px;
    }
    .w200 {
      width: 200px;
    }
    .h220 {
      height: 220px;
    }
    .fleft {
      float: left;
    }
  </style>
</head>
<body>
  <div class="outerBox">
    <div class="flexContainer w200 rowNoWrap tb30100">
      <div class="item right20"></div>
      <div class="item right20"></div>
      <div class="item right20"></div>
      <div class="item"></div>
    </div>
    <div class="flexContainer w200 rowNoWrap">
      <div class="item autoLBMargins right20"></div>
      <div class="item"></div>
    </div>
  </div>
  <div class="outerBox">
    <div class="flexContainer fleft h220 columnNoWrap lr3080">
      <div class="item bottom40"></div>
      <div class="item bottom40"></div>
      <div class="item"></div>
    </div>
    <div class="flexContainer fleft  h220 columnNoWrap">
      <div class="item bottom40"></div>
      <div class="item bottom40"></div>
      <div class="item autoBMargin"></div>
    </div>
  </div>
</body>
</html>