let yoff = 0.01;

let y = 0;

let x = 700;

​

function setup() {

  createCanvas(700, 700);

  background(250, 248, 247);

  strokeWeight(0.5);

​

}

​

function draw() {

  y = y + 1;

  x = x - 1;

  xoff = xoff + .01;

  yoff = yoff + .01;

  let n = noise(xoff, yoff) * width;

  noFill();

  stroke(0, y / 5);

  ellipse(n, y, x / 1.5, x / 1.5);

}