Matthew James Taylor Matthew James Taylor

Get Down! How to Keep Footers at the Bottom of the Page

10 Nov 2007 — Updated 15 Jan 2023

Footer at the bottom of the page

Table of contents

When I first ditched tables for pure CSS layouts I tried to make the footer stay at the bottom of the screen but I just couldn't do it.

Now, after years of practice, I have finally figured out a neat way to do it.

The Problem With Website Footers

A diagram describing the footer problem and the ideal solution

When an HTML page contains a small amount of content, the footer can sometimes sit halfway up the page leaving a blank space underneath.

This can look bad, particularly on a large screen.

Web designers are often asked to push footers down to the bottom of the viewport, but it's not immediately obvious how this can be done.

How to Push Footers to the Bottom of a Webpage

It's not that complicated. There are two parts to it - the HTML and the CSS.

The HTML div structure required

<div id="container">
   <div id="header"></div>
   <div id="body"></div>
   <div id="footer"></div>
</div>

There are only four divs required for this to work. The first is a container div that surrounds everything. Inside that are three more divs; a header, a body, and a footer. That's it, all the magic happens in the CSS.

The CSS rules

html,
body {
   margin:0;
   padding:0;
   height:100%;
}
#container {
   min-height:100%;
   position:relative;
}
#header {
   background:#ff0;
   padding:10px;
}
#body {
   padding:10px;
   padding-bottom:60px;   /* Height of the footer */
}
#footer {
   position:absolute;
   bottom:0;
   width:100%;
   height:60px;   /* Height of the footer */
   background:#6cf;
}

And one simple CSS rule for IE 6 and IE 5.5 if you need to support old browsers:

#container {
   height:100%;
}

Let's look at the CSS rules for each element:

The HTML and Body Tags

The HTML and body tags must be set to height:100%; this allows us to set a percentage height on our container div later.

I have also removed the margins and padding on the body tag so there are no spaces around the parameter of the page.

The Container Div

The container div has a min-height:100%; this will ensure it stays the full height of the screen even if there is hardly any content.

Note: Many older browsers don't support the min-height property, there are ways around it with JavaScript and other methods but that is out of scope for this article. It's not something you need to worry about with today's modern browsers.

The container div is also set to position:relative; this allows us to absolutely position elements inside it later.

The Header Div

There is nothing unusual with the header. Make it whatever color and size you like.

The Body Div

The body is quite normal too. The only important thing is it must have a bottom padding that is equal to (or slightly larger than) the height of the footer. You can also use a bottom border if you prefer but a margin won't work.

The Footer Div

The footer has a set height in pixels (or ems). The div is absolutely positioned bottom:0; this moves it to the bottom of the container div.

When there is little content on the page the container div is exactly the height of the browser viewport (because of the min-height:100%;) and the footer sits neatly at the bottom of the screen.

When there is more than a page of content the container div becomes larger and extends down below the bottom of the viewport - the footer is still positioned at the bottom of the container div but this time you need to scroll down to the end of the page to see it. The footer is also set to width:100%; so it stretches across the whole page.

The IE 6 & IE 5.5 CSS

Older versions of Internet Explorer don't understand the min-height property but lucky for us the normal height property behaves the same way in these old Microsoft browsers, that is, it will stretch to 100% height of the viewport but if the content is longer it will stretch even further.

We simply expose this 100% height rule to Internet Explorer only by using IE conditional comments. View the source on the demo to see how this is done.

We're done!

See it in action here: Bottom footer demo

Free Download

Download the source files and experiment with your bottom footer:

Download
(bottom-footer.zip 2kb)

The Main Features

This method uses 100% valid CSS and it works in all standards-compliant browsers. It also fails gracefully with older browsers so it's safe to use on any website.

Works in All Modern, Standards-Compliant Browsers

Compatible browsers: Firefox (Mac & PC), Safari (Mac & PC), Internet Explorer 7, 6 & 5.5, Opera and Netscape 8

Fails Gracefully on Older Browsers

Older non-standards compliant browsers position the footer under the content as per normal.

We can't help it if people are using an out-of-date browser, all we can do is reward people who have upgraded by giving them a better browsing experience through progressive enhancement.

Longer Content Pushes the Footer Off the Page

On long pages with lots of content, the footer is pushed off the visible page to the very bottom. Just like a normal website, it will come into view when you scroll down. This means that the footer isn't always taking up precious reading space.

100% Valid CSS With No Hacks

The CSS used in this demo is 100% valid and contains no hacks.

No JavaScript Required

JavaScript is not necessary because it works with pure CSS.

iPhone Compatible

This method also works on the iPhone and iPod Touch in the mobile Safari browser.

Limitations With This Method

There is only one limitation.

You must set the height of the footer div to something other than auto. Choose any height you like, but make sure the value is specified in pixels or ems within your CSS. This is not a big limitation, but it is essential for this method to work correctly.

If you have a lot of text in your footer then it's also a good idea to give the text a bit more room at the bottom by making your footer a bit deeper. This is to cater to people who have their browser set to a larger text size by default.

Another way to solve the same problem is to set the height of the footer in em units; this will ensure that the footer grows in size along with the text. If you only have images in your footer then there's nothing to worry about — just set your footer height to a pixel value and away you go.

Matthew James Taylor

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