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CSS

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HTML 

              
                <body>
  <div class="wrapper">

    <header class="landmark">
      <a href="#" class="logo">
        Biscuit!
      </a>
      <svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
        <circle cx="50" cy="50" r="50" />
      </svg>
    </header>

    <main class="landmark">
      <article class="chocolate">
        <h2>Choco cake</h2>
        <p>Cookie tart cake cotton candy chocolate chocolate.</p>
        <section>
          <h3>Jelly beans</h3>
          <p>
            Jelly beans gummi bears halvah halvah croissant lemon drops donut gummi bears
            candy canes. Icing sugar plum chupa chups jelly-o soufflé jelly-o pudding
            lollipop. Chocolate bar muffin bonbon pie tootsie roll danish bear claw
            cheesecake.
          </p>
        </section>
        <section>
          <h3>Marzipan</h3>
          <p>
            Marzipan bear claw sweet marzipan tootsie roll. Chupa chups powder tart halvah gingerbread icing sweet.
          </p>
        </section>
        <section>
          <h3>Cheesecake</h3>
          <p>
            Powder halvah soufflé caramels soufflé chocolate cake halvah.
          </p>
        </section>
        <section>
          <h3>Cotton candy</h3>
          <p>
            Biscuit sugar plum cake sugar plum powder cookie halvah. Cotton candy muffin jelly-o chocolate liquorice marshmallow danish wafer cotton candy. Cake shortbread oat cake powder marshmallow.
          </p>
        </section>
      </article>
    </main>

    <footer class="landmark">
      <p>
        Created and maintained by
        <a href="#">Lene</a>
      </p>
      <nav>
        <ul role='list'>
          <li>
            <a href="#" class="link-rss">RSS Feed</a>
          </li>
          <li> <a href="#" class="link-rss">Follow</a>
          </li>
        </ul>
      </nav>
      <p>
        Crafted with semantic HTML.
      </p>
    </footer>

  </div>
</body>
!

CSS 

              
                /* reset: https://andy-bell.co.uk/a-more-modern-css-reset/ */

/* Box sizing rules */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Prevent font size inflation */
html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
}

/* Remove default margin in favour of better control in authored CSS */
body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin-block-end: 0;
}

/* Remove list styles on ul, ol elements with a list role, which suggests default styling will be removed */
ul[role="list"],
ol[role="list"] {
  list-style: none;
}

/* Set core body defaults */
body {
  min-height: 100vh;
  line-height: 1.5;
}

/* Set shorter line heights on headings and interactive elements */
h1,
h2,
h3,
h4,
button,
input,
label {
  line-height: 1.1;
}

/* Balance text wrapping on headings */
h1,
h2,
h3,
h4 {
  text-wrap: balance;
}

/* A elements that don't have a class get default styles */
a:not([class]) {
  text-decoration-skip-ink: auto;
  color: currentColor;
}

/* general */

body {
  font-size: clamp(1rem, 0.82rem + 0.88vw, 1.875rem);
}

.wrapper {
  inline-size: clamp(16rem, 93vw, 120rem);
  margin-inline: auto;
  position: relative;
}

svg {
  block-size: 2ex;
}

ul {
  display: flex;
  gap: 1rem;
  padding: 0;
}

/* main grid */

body > div {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background-color: blue;
 gap: 1px; 
}

/* subgrids */

:is(header, main, footer).landmark, main.landmark > article {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
  background-color: white;
}

/* placing items */

header.landmark svg {
  grid-column-start: -1;
}

main.landmark > article > p {
  grid-row: 2;
}

article.chocolate > section:first-of-type {
	grid-column: 2 / -1;
  grid-row: 3;
}

article.chocolate > section:nth-of-type(2) {
	grid-column: 3 / -1;
   grid-row: 4;
}

article.chocolate > section:nth-of-type(3) {
	grid-column: span 1 / -1;
   grid-row: 5;
}

article.chocolate > section:last-of-type {
	grid-column: 3 / -1;
   grid-row: 6;
}

footer.landmark {
  grid-template-rows: repeat(2, auto);
}

footer.landmark p:first-of-type {
  grid-column: span 2;
  grid-row: 1 / -1;
}

footer.landmark p:last-of-type,
footer.landmark nav {
  grid-column: span 2 / -1;
  place-self: end;
}
!

JS
!
999px

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