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

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

function draw () {
  const maxWidth = windowWidth
  for (let i = 0; i < 100; i ++) {
    let randomNumber = random(maxWidth)
    let randomWidth = random(10)
    strokeWeight(randomWidth)
    line(0, i * 30, 10 + randomNumber, 0)
  }
}