We know that everything on the web is a box by default, but you’ll find many animated <div>s pretending to be circles. But if you’ve ever met a real <circle>, you’ll know that they’ve got a lot more going for them. Dressed in SVG, they fit into a wider range of crowds than a humble <div> wearing HTML/CSS can. <img> has a strict no .html policy.
The <img> tag is not as static as its name suggests. Any embedded JavaScript unfortunately won’t run if you load an SVG file with an <img> tag, but CSS animations work perfectly fine. Many of the SVG attributes do have CSS property counterparts, and the geometry properties have been supported across the major browsers since 2024. Some attributes that you might want to animate, like viewBox, don’t have equivalents yet.

