# 1px alignment problem in FF

**URL:** <https://forum.kirupa.com/t/1px-alignment-problem-in-ff/227078>\
**Category:** web dev\
**Created:** [May 26, 2007, 6:35pm UTC](https://forum.kirupa.com/t/1px-alignment-problem-in-ff/227078 "2007-05-26T18:35:30Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![DeringerColt](https://avatars.discourse-cdn.com/v4/letter/d/45deac/32.png) [@DeringerColt](https://forum.kirupa.com/u/DeringerColt)\
**Post date:** [May 26, 2007, 6:35pm UTC](https://forum.kirupa.com/t/1px-alignment-problem-in-ff/227078/1 "2007-05-26T18:35:30Z")

</div>

Hi all, im currently designing a layout for a website, but I cannot get my left margin aligned with my banner in FF. It is out by 1px and I have tried everything to sort the alignment apart from absolute positioning.

Can anyone help me out here.

Cheers

Deringer

PS. the layout is fine in IE

Heres the CSS file

```auto

html, body{
text-align: center;
font-style:normal;
font-size: 8pt;
font-family: sans-serif;
padding:5px;
}
* 
{
margin: 0;
padding: 0;
border: none;
}
#container{
width:800px;
height:600px;
margin: auto;
text-align:left;
}
#header{
height:93px;
width:800px;
}
#leftMargin{
width:191px;
height:600px;
background-color:#CCCCCC;
margin-left:155px;
float:left;
margin-top:-3px;
margin-left:155px;
}
#mainImg{
width:610px;
height:275px;
float:left;
margin-top:-3px;
}

```