<!--Content: https://branch.climateaction.tech/-->
<main>
  <div class="grid">
    <div class="grid__item-wrapper">
      <div class="item">
        <p class="card__top">Solarpunk and Hope</p>
        <img src='https://images.unsplash.com/photo-1576403103737-dc646cbf7de5?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2NTI3ODcyMjI&ixlib=rb-1.2.1&q=80&w=400' alt='Large globe'>
        <div class="card__inner">
          <h3>We Don’t Have the Right: A Decolonized Approach to Innovation</h3>
          <p>Shayna Robinson</p>
          <a href="">Read the article</a>
        </div>
      </div>
    </div>
    <div class="grid__item-wrapper">
      <div class="item" style="--c: darkorchid">
        <p class="card__top">Fossil-Free Futures</p>
        <img src='https://images.unsplash.com/photo-1509390981263-4d8df07d826c?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2NTI3ODYzNzc&ixlib=rb-1.2.1&q=80&w=400' alt='Wind turbines'>
        <div class="card__inner">
          <h3>We Need a Fossil-Free Internet by 2030</h3>
          <p>Chris Adams</p>
          <a href="">Read the article</a>
        </div>
      </div>
    </div>
    <div class="grid__item-wrapper">
      <div class="item" style="--c: orange">
        <p class="card__top">Climate Misinformation</p>
        <img src='https://images.unsplash.com/photo-1576403103737-dc646cbf7de5?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2NTI3ODcyMjI&ixlib=rb-1.2.1&q=80&w=400' alt='Large globe'>
        <div class="card__inner">
          <h3>Carbon Footprint of Unwanted Data-Use by Smartphones</h3>
          <p>CE Delft</p>
          <a href="">Read the article</a>
        </div>
      </div>
    </div>
  </div>
</main>
<aside>
  <div class="grid">
    <div class="grid__item-wrapper">
      <div class="item" style="--c: turquoise">
        <p class="card__top">Tech workers</p>
        <img src='https://images.unsplash.com/photo-1509390981263-4d8df07d826c?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2NTI3ODYzNzc&ixlib=rb-1.2.1&q=80&w=400' alt='Wind turbines'>
        <div class="card__inner">
          <h3>The Handbook Every Worker in Tech Needs to Read</h3>
          <p>Ifeoma Ozoma</p>
          <a href="">Read the article</a>
        </div>
      </div>
    </div>
    <div class="grid__item-wrapper">
      <div class="item" style="--c: teal">
        <p class="card__top">Sustainable Web Craft</p>
        <div class="card__inner">
          <h3>Green Tech: What Solutions Are Being Advocated?</h3>
          <p>Anne Currie</p>
          <a href="">Read the article</a>
        </div>
      </div>
    </div>
  </div>
</aside>
* {
  box-sizing: border-box;
}

body {
  --pad: clamp(1rem, 2vw, 3rem);
  --pad-lg: calc(var(--pad) * 2);
  --pad-sm: calc(var(--pad) / 2);
  --pad-xs: calc(var(--pad) / 4);
  margin: 0;
  font-family: 'Exo 2', sans-serif;
  background: lightblue;
  min-height: 100vh;
}

img {
  width: 100%;
  display: block;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

main,
aside {
  container: layout / inline-size;
  padding: var(--pad);
}

aside {
  background: cornflowerblue;
}

@media (min-width: 60em) {
  body {
    display: grid;
    grid-template-columns: 1fr min(28rem, 50%);
  }
}

p,
h3 {
  margin: 0;
}

.card__inner h3 {
  margin: 0 0 var(--pad-xs);
  font-size: 1.5rem;
}

.card__inner p {
  margin: 0 0 var(--pad-sm);
}

.grid {
  display: grid;
  gap: var(--pad);
  margin: 0 auto;
  max-width: 65rem;
  padding: var(--pad);
}

.grid__item-wrapper {
  container: component / inline-size;
}

@media (min-width: 75em) {
  .grid {
    border: 0.2rem solid aliceblue;
    padding: var(--pad);
  }
}

.item {
  background: var(--c, deeppink);
  width: 100%;
  border-radius: var(--pad);
  border: 0.4rem solid;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.card__inner,
.card__top {
  padding: var(--pad-sm);
}

.card__inner {
  display: flex;
  flex-direction: column;
  flex: 1 0 auto;
  background: white;
}

.card__top {
  color: white;
  font-weight: 700;
}

.card__inner > * + * {
  margin-top: var(--pad-sm);
}

.card__inner a {
  margin-top: auto;
  color: inherit;
  font-size: 0.9rem;
}

[style="--c: turquoise"] .card__top,
[style="--c: orange"] .card__top {
  color: black;
}

@container layout (inline-size > 40em) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid__item-wrapper:first-child {
    grid-column: 1 / span 2;
  }
  
  .item {
    height: 100%;
  }
}


@container component (inline-size > 20em) {
  .card__inner h3 {
    font-size: 1.8rem;
  }
}

@container component (inline-size > 40em) {
  .item {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 2fr;
  }
  
  .item img {
    aspect-ratio: none;
    height: 100%;
  }
  
  .card__top {
    position: absolute;
    top: 0;
    left: 0;
    background: var(--c, deeppink);
    z-index: 2;
  }
  
  .card__inner {
    flex: 1 1 auto;
    padding: var(--pad);
  }
  
  .card__inner h3 {
    font-size: clamp(1.5rem, 2vw + 1rem, 3rem);
  }
}

External CSS

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