row-grid-lanes-item-baseline-subgrid-002-ref.html

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<!DOCTYPE html>

<meta charset="utf-8">

<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">

<style>

  html, body { color: black; background: white; padding: 0; margin: 0; }

  .grid {

    display: inline grid;

    grid-template-rows: auto;

    grid-template-columns: auto auto;

    height: 100px;

    font: 16px/1 Ahem;

    border: 1px solid black;

    align-items: last baseline;

  .subgrid { display: grid; grid: subgrid / auto; grid-auto-flow: column; align-items: last baseline; }

  .b { text-decoration: underline; }

  .big   { font-size: 24px; }

  .med   { font-size: 28px; }

  .small { font-size: 20px; }

  .mbp   { border: 2px solid blue; padding-block-start: 8px; }

</style>

<div class="grid">

  <div class="b big">X</div>

  <div class="subgrid">

    <div class="b small">X</div>

    <div class="b med">X</div>

    <div class="b small mbp">X</div>

  </div>

</div>