Remove scrollbar from iframe

Using this code

<iframe frameborder="0" style="height: 185px; overflow:scroll; width: 100%" src="http://www.cbox.ws/box/?boxid=439&boxtag=7868&sec=main" marginheight="1" marginwidth="1" name="cboxmain" id="cboxmain" seamless="seamless" scrolling="no" frameborder="0" allowtransparency="true"></iframe>

This is how it appears (the shoutbox on homepage of http://www.talkjesus.com)

How do I remove the horizontal scrollbar and modify the css of the vertical scrollbar?

Add scrolling="no" attribute to the iframe.

This works in all browsers

<iframe src="http://buythecity.com"  scrolling="no" style=" width: 550px; height: 500px;  overflow: hidden;" ></iframe>