Why Does My CSS Sticky Footer Cause Unwanted Scrollbars and Background Issues?

Understanding the Issue with CSS Sticky Footers

Implementing a CSS sticky footer can introduce undesirable scrollbars and cause content to extend beyond its container. Additionally, the background image may not fully cover the page.

To address this, let's examine the provided HTML and CSS code:

HTML:

<div>
<p><strong>CSS:</strong></p>
<pre class="brush:php;toolbar:false">#content {
    height:100%;
    min-height:100%;
}

The Issue:

The problem arises from setting both height and min-height to 100%. This fixes the content area to a particular height, preventing it from expanding beyond its specified dimensions. However, the content within the content div may exceed its specified height, resulting in overflow and scrollbars.

Solution 1: CSS Tricks Sticky Footer Snippet

Visit the CSS Tricks website to obtain a code snippet specifically designed for creating sticky footers using CSS.

html, body { height:100%; }
#wrapper { min-height:100%; position:relative; }
#footer { position:absolute; bottom:0; width:100%; }

Solution 2: jQuery Sticky Footer Snippet

If using jQuery is an option, CSS Tricks also provides a jQuery-based sticky footer snippet:

$(document).ready(function() {
    var footer = $("#footer");
    var pos = footer.position();
    var height = $(window).height();
    footer.css({
        top: height - pos.bottom
    });
});

By implementing these solutions, the sticky footer behavior can be achieved while allowing the content area to expand dynamically based on its content, eliminating the unwanted scrollbars and ensuring the background image fully covers the page.