<html>
<head>
<style>
*{
margin: 0;
padding: 0;
}
body {background: black;}
canvas {display:block;}
</style>
</head>
<body>
<canvas id="c"></canvas>
<script>
var c = document.getElementById("c");
var ctx = c.getContext("2d");
c.height = window.innerHeight;
c.width = window.innerWidth;
var matrix = "ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789@#$%^&*()*&^%";
matrix = matrix.split("");
var font_size = 10;
var columns = c.width/font_size;
var drops = [];
for(var x = 0; x < columns; x++)
drops[x] = 1;
function draw()
{
ctx.fillStyle = "rgba(0, 0, 0, 0.04)";
ctx.fillRect(0, 0, c.width, c.height);
ctx.fillStyle = "#0F0";
ctx.font = font_size + "px arial";
for(var i = 0; i < drops.length; i++)
{
var text = matrix[Math.floor(Math.random()*matrix.length)];
ctx.fillText(text, i*font_size, drops[i]*font_size);
if(drops[i]*font_size > c.height && Math.random() > 0.975)
drops[i] = 0;
drops[i]++;
}
}
setInterval(draw, 35);
</script>
</body>
</html>