let lineWidth;

​

function setup() {

  createCanvas(400, 300);

  background(0);

}

​

function draw() {

  lineWidth = random(4,28);

  circleSize = random(5,250);

  stroke(100, 0, 0, 10);

  strokeWeight(lineWidth);

  fill(150, 10);

  circle(200, 150, circleSize, 15);

}

​

​

//variables width and height the variables for the size of the canvas