text: let bubbles = [];
  let canvas;
  function setup() {
  	canvas = createCanvas(windowWidth, windowHeight);
  	background('#f0f8ff');
  
  	canvas.position(0, 0);
  	canvas.style("z-index", "-1");
  	for (let i = 0; i < 40; i++) {
  		let a = random(width);
  		let b = random(height);
  		let c = random(10, 50);
  		bubbles[i] = new Bubble(a, b, c);
  	}
  }
  function draw() {
  	// background(0);
  	for (let i = 0; i < bubbles.length; i++) {
  		bubbles[i].show();
  		bubbles[i].move();
  		bubbles[i].check();
  		bubbles[i].ofscreen();
  
  		for (let j = 0; j < bubbles.length; j++) {
  			if (bubbles[i] !== bubbles[j] && bubbles[i].collide(bubbles[j])) {
  				bubbles[i].collapse(bubbles[j]);
  			}
  		}
  	}
  }
  
  function windowResized() {
  	resizeCanvas(windowWidth, windowHeight);
  }