<link type="text/css" rel="stylesheet" href="style.css">
<script>
  // لا يُنفّذ السكربت حتى تُحمّل ورقة التنسيق
  alert(getComputedStyle(document.body).marginTop);
</script>
Run Pen

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.