# 2 browser compatibilty issues

**URL:** <https://forum.kirupa.com/t/2-browser-compatibilty-issues/191975>\
**Category:** web dev\
**Created:** [June 24, 2006, 4:33pm UTC](https://forum.kirupa.com/t/2-browser-compatibilty-issues/191975 "2006-06-24T16:33:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tanel96](https://avatars.discourse-cdn.com/v4/letter/t/5fc32e/32.png) [@tanel96](https://forum.kirupa.com/u/tanel96)\
**Post date:** [June 24, 2006, 4:33pm UTC](https://forum.kirupa.com/t/2-browser-compatibilty-issues/191975/1 "2006-06-24T16:33:11Z")

</div>

1.) I’m using an \<iframe\> element… and i need the vertical scrollbar, but for some weird reason firefox also adds a horizontal bar… how on earth to get rid of that ? I tried googling it, but got no ideas.

2.) my css looks like this:

```auto

html, body {
 margin-left: 4px;
 margin-top: 4px;
 margin-right: 4px;
 margin-bottom: 4px;
}

```

the problem is that it displays a correct 4px margin in IE6, but a 6px margin in FireFox 1.5.0.4… why is it larger in firefox and how to lose the 2 extra pixels ?