SOURCE

var c = document.getElementById("canvas-club");
var ctx = c.getContext("2d");
var w = c.width = window.innerWidth;
var h = c.height = window.innerHeight;



function o(){};
o.prototype={
  init:function(){
    this.w = "";
    this.y= 0;
    this.color="hsl(180, 100%, 50%)";
    this.hit = random(h * .8, h * .9);
  },
  draw:function(){
    if(this.y>this.hit){
      
    }
  }  
}

<canvas id="canvas-club"></canvas>

body {
			overflow: hidden;
			background: black;
		}