The simplest solution is to use min-height
on the <html>
tag and position the <footer>
with position:absolute;
Demo: jsfiddle and SO snippet:
html {
position: relative;
min-height: 100%;
}
body {
margin: 0 0 100px;
/* bottom = footer height */
padding: 25px;
}
footer {
background-color: orange;
position: absolute;
left: 0;
bottom: 0;
height: 100px;
width: 100%;
overflow: hidden;
}
<article>
<!-- or <div class="container">, etc. -->
<h1>James Dean CSS Sticky Footer</h1>
<p>Blah blah blah blah</p>
<p>More blah blah blah</p>
</article>
<footer>
<h1>Footer Content</h1>
</footer>