<header class="header">
  <img class="header__twicpics-logo" src="https://assets.twicpics.com/videos/demo-twicpics/logo-white.png" alt="TwicPics logo" />
</header>

<main class="demo">
  <section class="demo-content">
    <div class="demo-content__gallery">
      <div>
        <div class="demo-content__gallery__img-container">
          <img data-twic-src="media:refit/stephan-valentin-L7wgqiQ906o-unsplash.jpg" alt="" />
        </div>
        <p class="demo-content__gallery__img-caption">Without the "refit" transformation</p>
      </div>
      <div>
        <div class="demo-content__gallery__img-container">
          <img data-twic-src="media:refit/stephan-valentin-L7wgqiQ906o-unsplash.jpg" data-twic-transform="refit=1:1" alt="" />
        </div>
        <p class="demo-content__gallery__img-caption">refit=1:1</p>
      </div>
    </div>
  </section>
</main>

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Montserrat", sans-serif;
  color: #64748b;
}

.header {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px;
  background-color: #9002ff;
}

.header__twicpics-logo {
  width: 140px;
}

.demo {
  padding: 50px 0;
  width: 100%;
}

.demo-content {
  margin: 0 auto;
  padding: 0 20px;
  max-width: 1100px;
}

.demo-content__gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.demo-content__gallery__img-container {
  position: relative;
  padding-top: 100%;
  border-radius: 6px;
  overflow: hidden;
  background-color: rgb(233, 233, 233);
}

.demo-content__gallery__img-container img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.3s;
  will-change: opacity;
}

.demo-content__gallery__img-container img.twic-done {
  opacity: 1;
}

.demo-content__gallery__img-caption {
  padding: 6px;
  text-align: center;
  font-style: italic;
  font-weight: 500;
}