<button class="btn">
  Hello World
</button>
.btn {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: none;
  background: slateblue;
  color: white;
  font-size: 20px;
  font-weight: 500;
  line-height: 1;
  transition: transform 250ms;
}

.btn:hover {
  transform: translateY(-10px);
}

External CSS

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External JavaScript

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