King of JavaScript Online HTML Editor

<!DOCTYPE html>
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Star Pattern Program in JavaScript</title>
<style>
body{
    font-size:50px;
    color:red;
    line-height:0.8;
 }
</style>
</head>
<body>
<script>
var x = 5;
for (let i = 1; i <= x; i++) {
    for (let j = 1; j <= i; j++) {
        document.write("*");
    }
    document.write("<br/>");
}
</script>
</body>
</html>