<img src="image.jpg" loading="lazy" alt="Alternative Text" />

<picture>
  <!-- load .webp image if supported -->
  <source srcset="logo.webp" type="image/webp" />

  <!-- 
	Fallback if `.webp` images or <picture> tag 
	not supported by the browser.
  -->
  <img src="logo.png" alt="logo" />
</picture>