html, body {
  height: 100%;
  width: 100%;
}

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

function draw () {
  for (let i = 0, color = 0; i < 50; i++, color += 5) {
    let randomNumber = random(windowWidth)
    strokeWeight(3)
    stroke(color, color / 2, 255)
    line(0, i * 30, 10 + randomNumber, 0)
    stroke(255, color / 2, color, color)
    line(0, i * 30, 10 + randomNumber, 0)
  }
}