article {
  display: grid;
  grid-template-columns: 220px 1fr;
  grid-template-areas:
    "image title"
    "image intro";
  gap: 1rem 1.5rem;
  align-items: start;
}

article>header {
  display: contents;
}

article>header>div.image {
  grid-area: image;
  width: 220px;
}

article>header>h2 {
  grid-area: title;
  margin: 0;
}

article>div.introtext {
  grid-area: intro;
}

article>header>div.image img {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 600px) {
  article {
    grid-template-columns: 1fr;
    grid-template-areas:
      "image"
      "title"
      "intro";
  }

  article>header>div.image {
    justify-self: center;
  }
}