<div id="root"></div>#root {
width: 300px;
height: 300px;
background:
radial-gradient(ellipse, rgb(0 0 0) 0%, 50%, transparent 51%) 100px 0 / 100px 100px no-repeat repeat; /* Dots */
}<iframe
src="https://gra.dient.art/embed/j7nx1ejpwz"
title="3 Dots (Vertical) | GradientArt"
width="300"
height="300"
style="border: 0; max-width: 100%; aspect-ratio: 300 / 300; height: auto;"
loading="lazy"
></iframe>