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                <div class="container">
  <div class="wrapper">
    <header>The header.</header>
      <p>Turnip greens yarrow ricebean rutabaga endive cauliflower sea lettuce kohlrabi amaranth water spinach avocado daikon napa cabbage asparagus winter purslane kale. Celery potato scallion desert raisin horseradish spinach carrot soko.  </p>
      The sidebar
      The footer.



                * { box-sizing: border-box; }

body {
  margin: 0;
  padding: 40px;
  font: 1.2em 'Open Sans', sans-serif;
  background-color: #fff;

h1, h2, h3 {
  font-family: 'Averia Serif Libre', cursive;

.container {
  background-color: #ddddda;
  height: 720px;
  width: 1280px;
  padding: 60px 140px;

.wrapper {
  background-color: #fff;
  padding: 1em;
  display: grid;
  gap: 20px;

@media (min-width: 600px) {
  .wrapper {
    grid-template-columns: 3fr 1fr;
      "hd hd"
      "bd sd"
      "ft ft";

header { grid-area: hd; }
article {grid-area: bd; }
aside { grid-area: sd; }
footer { grid-area: ft; }

.wrapper > * {
   padding: 1em;
  background-color: rgb(133,30,62);
  color: #fff;
  border-radius: 10px;