ultra-ice-ms7

コード

<!doctype html>
<html lang="ja">
  <head>
    <meta charset="utf-8" />
    <title>sketch</title>
    <script src="https://cdn.jsdelivr.net/npm/p5@1/lib/p5.min.js"></script>
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <script src="sketch.js"></script>
  </body>
</html>

html,
body {
  margin: 0;
  padding: 0;
  overflow: hidden;
}

function setup() {
  createCanvas(windowWidth, windowHeight);
}

function draw() {
  background(20);
  noStroke();
  fill(255, 120, 160);
  circle(width / 2, height / 2, 120 + sin(frameCount * 0.05) * 40);
}

function windowResized() {
  resizeCanvas(windowWidth, windowHeight);
}