Edit on
<picture>
	  <source media="(min-width: 800px)" srcset="https://danbovey.uk/uploads/blog/using-the-picture-element-for-the-first-time/pikachu.png">
	  <img src="https://danbovey.uk/uploads/blog/using-the-picture-element-for-the-first-time/riachu.jpg" alt="This picture loads on non-supporting browsers">
</picture>
/* No CSS or JS is really required! */
body {
  text-align: center;
}
img {
  max-height: 200px;
}
Rerun