<!-- 100px wide -->
<img src="https://zenhub.zengenti.com/image-examples/tree-frog.jpg?width=100" alt="A green tree frog" />

<!-- 100px high -->
<img src="https://zenhub.zengenti.com/image-examples/tree-frog.jpg?height=100" alt="A green tree frog" />

<!-- 200px wide & 500px high -->
<img src="https://zenhub.zengenti.com/image-examples/tree-frog.jpg?width=200&height=500" alt="A green tree frog" />

img {
  display:block;
  margin-bottom:8px;
}

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