জাভাস্ক্রিপ্ট moveBy

<!DOCTYPE html>
<html>
<body>

<button onclick="execute()">খুলুন</button>
<button onclick="page.moveBy(100, 50)">মুভ</button>

<script>
let page;

function execute() {
  page = window.open("", "_blank", "width=400,height=250");
  page.document.write("<h2>প্রোগ্রামিং শিখুন</h2>");
}
</script>

</body>
</html>