<div class="wrapper">
  <div class="block"></div>
</div>
.block {
  width: 200px;
  height: 200px;
  background: linear-gradient(90deg, rgba(184,238,174,1) 0%, rgba(148,233,206,1) 100%);
  border-radius: 10px;
}
const blockEl = document.querySelector('.block');
blockEl.style.marginTop = `${blockEl.offsetHeight}px`

External CSS

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External JavaScript

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