CSS 100% height layout

You can do it with table style CSS properties, but still retain table less markup (which is still a win).

Example

HTML

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

CSS

html,
body {
    height: 100%; 
    padding: 0;
    margin: 0;
}

#container {
    display: table; 
    width: 100%;
    height: 100%;
    border: 1px solid red;   
    text-align: center;
}

#container > div {   
    display: table-row;   
    width: 100%;
}

#container > div > div {   
    display: table-cell;   
    width: 100%;
    border-radius:10px; 

}

#header > div {
    height:50px; 
    border:solid 2px #aaa;
}

#content > div {
    height: 100%;    
    background:#f0f4f0; 
    border:solid 2px #5a5;
}

#footer > div {
    height:50px; 
    border:solid 2px #a55;
}

jsFiddle.