Troubleshooting IE's alignment issue on HTML pages without DTD validation

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html >

<body>
<div id="container"> 
<div id="menu"> 
    <ul> 
        <li><a >page1</a></li> 
        <li><a >page2</a></li> 
        <li><a >page3</a></li>            
    </ul> 
</div>
</div> 
</body> 
</html> 

Here is the CSS code:

<style>
#menu {
    margin: 0 10px 10px 10px;
    overflow: hidden;
    font-size: 13px;
    font-weight: bold;
}

#menu ul {
    margin: 0;
    padding: 0;
}

#menu ul li {
    margin: 0 2px;
    display: inline;
    vertical-align: middle;
    text-align: center;
}


#container {
    width: 785px;
    margin: 0 auto;
    background-color: #fff;
    padding-top: 6px;
    padding-bottom: 10px;
}

</style>

In order to center the menu on the page, you can try the following:

If you are facing alignment issues in Internet Explorer (IE) after removing the DTD validator, you can try adjusting the CSS properties to achieve the desired result. You can try using alternative styling techniques to center the menu without relying on the DTD validator.

Answer №1

Take a look at my response:

"In Internet Explorer, if I remove the DTD validator, the content is always aligned to the left" - solution: keep the doctype intact.

Why are you considering removing it?

It is highly advised not to remove the doctype, unless absolutely necessary.

If there truly seems to be no other option (perhaps working on a large outdated website with no doctype - but that scenario is unlikely in this situation), you can center it in IE Quirks Mode by adding this CSS:

body {
    text-align: center
}
#container {
    text-align: left
}

Answer №2

Have you considered the implications of removing the DTD declaration? It plays a crucial role in ensuring your page is properly categorized into valid formats. Without this declaration, your browser may default to quirks mode, which can lead to non-compliance with standards.

Make sure to check out W3C Markup Validator for further guidance.

Answer №3

One effective strategy is to set a specific width for the menu and then center it by adjusting the margins:

#menu {
  width: 200px;
  margin:auto auto;
}

You can see the results in action here: http://jsfiddle.net/mrSmG/

Answer №4

When a DTD is missing, browsers default to 'quirks mode,' using outdated implementations that can vary significantly. Implementing a correct DTD puts browsers in 'standards mode,' ensuring maximum consistency across all browsers.

The issue here lies not with the DTD, but with the CSS.

To center your menu, follow the same approach you used for the container: set a width and adjust the left and right margins to 'auto':

<style>
#menu { margin:0 auto ; width:500px ; }
</style>

This method is standards-based and widely supported.

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