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  1. One pixel off in IE - center div    Forum: CSS Forum
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  2. Mysterious 1 pixel border around jpg's    Forum: CSS Forum
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  3. OS differences in CSS positioning    Forum: CSS Forum
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  4. OS differences in CSS positioning    Forum: General Discussion
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  1. #1
    demon_jr's Avatar
    New User

    Join Date
    Jan 2003

    Question Are there pixel differences in IE and Mozilla?

    Hi everyone,

    I am just learning CSS and how to use Positioning. When I created a sample web page, the positioning was different for IE and Mozilla. It was off by a few pixels.

    Please refer to the CSS at the bottom.

    The space between the .nav box and the .center box does not appear to be the same in both browsers.

    In addition, right margin of the .top box appears differently in both browsers.

    What is the problem?

    The CSS I used follows:

    body { background-color: white;
    color: black;
    font-family: verdana, sans-serif;
    margin: 0em;

    .top { background-color: #006699;
    font-weight: bold;
    color: white;
    position: absolute;
    top: 40px;
    left: 0px;
    width: 400px;

    .nav { position: absolute;
    top: 95px;
    left: 0px;
    font-size: 75%;
    border-style: dotted;
    border-width: 1px;
    width: 100px;

    .center { position: absolute;
    top: 95px;
    left: 105px;
    border-style: solid;
    border-width: 1px;
    width: 300px;

  2. #2
    QuietDean's Avatar

    Join Date
    Oct 2000
    Bournemouth, UK
    Hi demon.

    The difference probably lies in the differing ways that the two browsers treat the 'box model'.

    You didn't say what version of IE you are running, but they are all pretty bad, especially 5.*.

    The correct way of treating a box , for example, is if you have a box 500px wide, and you put a border around it of 2px to a side. This box should now be 504px wide, as a border is defined as being around the box.

    Internet Explorer makes the box smaller and then puts the border round it, so it remains 500px. This is incorrect.

    thats just an example, but IE is riddled with this kind of thing.

    For a good explanation of the faults of IE's box model, and a great 'hack' to get around it -

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