Styling A 100% width Iframe - IE problem

Hi folk,

Excuse me for jumping straight in with a question, just found these forums and hoping one of you guys can help out here.

I'm trying to style an Iframe to 100% width of the screen so that it appears
Seemlesly on the page. Trouble is IE is not making this easy as it always seems to put in a right margin. However, It seems to work fine in Firefox.

Here's the code - does anyone know a way to get rid of the this margin?

HTML

<iframe name="iframe1" src="http://www.third-party-site.co.uk">


CSS

iframe{
position: absolute;
top: 0em;
left: 0em;
z-index: 2;
frameborder: 0;
width: 100%;
height: 300;
scrolling: no;
border-right: 0px;
border-top: 0px;
border-left: 0px;
border-bottom: 0px;
margin-right: 0px;

}

its the default margin of the body element
html,body {
margin:0px;
padding:0px;
}

Excellent,

thanks for that - had totally forgotten about the body margin.

Moff