customshape.js

Svg height="100" width="100">
  <Circle
    cx="50"
    cy="50"
    r="45"
    stroke="blue"
    strokeWidth="2.5"
    fill="green"
  />
  <Rect
    x="15"
    y="15"
    width="70"
    height="70"
    stroke="red"
    strokeWidth="2"
    fill="yellow"
  />
</Svg>;