Make iframe automatically adjust height according to the contents without using scrollbar? [duplicate]

Add this to your <head> section:

<script>
  function resizeIframe(obj) {
    obj.style.height = obj.contentWindow.document.documentElement.scrollHeight + 'px';
  }
</script>

And change your iframe to this:

<iframe src="https://stackoverflow.com/questions/9975810/..." frameborder="0" scrolling="no" onload="resizeIframe(this)" />