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03.18.2008 at 04:38AM PDT, ID: 23249796
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8.9

Div height percentage setting being ignored by Firefox

Zones: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Firefox Web Browser
Tags: CSS, Firefox 2.0, IE7, http://paultipper.net/divheight/iframe.xhtml
I'm trying to use CSS to set the heights of the three main divs on a page I'm developing. Basically, the page will consist of a banner across the top, a sidebar on the left-hand side (that will contain the site menu), and then a content div filling the remaining space below the banner. I've tried setting the heights of the three divs as follows in the stylesheet:

div.banner {
      background-color: darkblue;
      color: white;
       width: 100%;
       height: 15%;
      display: block;
}

 div.sidebar
 {
      background-color: #CCEEFF;
       width: 250px;
       height: 84%;
       float: left;
      clear: none;
 }

 div.content
 {
       background-color: #FFEECC;
       height: 84%;
       width: auto;
    float: left;
      clear: none;
}

So, the heights of the three divs should be as follows:

Banner - 15%
Side bar - 85%
Content - 85%

I expect the divs to fill the window nicely (without scrollbars), and the background colours to fill the divs down to the end of the page when the page is loaded and/or resized. This works in IE7, but not in Firefox: see http://paultipper.net/divheight/iframe.xhtml to see what I mean.

Can anyone tell me what I need to do to get this working in Firefox (without resorting to Javascript)?

Of course, I could achieve the same layout easily using frames, but these seem to be widely deprecated for usability reasons and because of problems with search engines. What's the general view on this; should I persevere with divs, or should I use frames instead?

See the snippets below for the XHTML and CSS code.
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body
{
	background-color: #ffffff;
	color: #000000;
	font-family: "Lucida Grande", "Lucida Sans Unicode", Verdana, sans-serif;
}
 
body.banner
{
}
 
div.banner {
	background-color: darkblue;
	color: white;
 	width: 100%;
 	height: 15%;
	display: block;
}
 
 div.sidebar
 {
	background-color: #CCEEFF;
 	width: 250px;
 	height: 84%;
 	float: left;
	clear: none;
 }
 
 div.content
 {
 	background-color: #FFEECC;
 	height: 84%;
 	width: auto;
    float: left;
	clear: none;
}
 
 
frame.banner {
	/*
	background-image: url(testbg.png);
	background-repeat: no-repeat;
	*/
	background-color: darkblue;
}
 
body.toc
{
}
 
frame.toc {
	background-color: #CCEEFF;
}
 
frame.content {
}
 
<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSpy v2008 sp1 (http://www.altova.com) by Paul Tipper (ADP Dealer Services Ireland Ltd.) -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
		<title>Site Title</title>
		<link type="text/css" rel="stylesheet" href="common.css" />
		<!-- script src="general.js"/ -->
	</head>
	<body>
		<div class="banner" id="banner">
			<h1>Site Title</h1>
		</div>
		<div class="sidebar" id="sidebar">
			<table width="100%">
				<tbody>
					<tr>
						<th>
							<a href="home.xhtml" target="content">Home</a>
						</th>
					</tr>
					<tr>
						<th>
							<a href="news.xhtml" target="content">News</a>
						</th>
					</tr>
				</tbody>
			</table>
		</div>
		<div class="content" id="content">
			<p id="content_p">This page consists of three divs, whose heights should be as follows:</p>
			<ul>
				<li>Banner - 15%</li>
				<li>Side bar - 85%</li>
				<li>Content - 85%</li>
			</ul>
			<p>I expect divs to fill the window nicely (without scrollbars), and the background colours to fill the divs down to the end of the page. This works in IE7, but not in Firefox.</p>
		</div>
	</body>
</html>
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Question Stats
Zone: Web Development
Question Asked By: paul_tipper
Solution Provided By: Eternal_Student
Participating Experts: 1
Solution Grade: B
Views: 119
Translate:
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03.18.2008 at 08:40AM PDT, ID: 21152208

Rank: Wizard

Eternal_Student:

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03.18.2008 at 10:12AM PDT, ID: 21153363
paul_tipper:

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