body {
  margin: 0;
  height: 100vh;
  background: radial-gradient(circle, skyblue, steelblue);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

canvas {
  border: 1px dotted #222;
}

/* font: 32px Calibri; */
/* font: normal normal lighter 24px Calibri; */