How to show full height background image

The background-size property in CSS is one of the most useful — and most complex — of the background properties. There are many variations and different syntaxes you can use for this property, all of which have different use cases. 

Question:

I have a photo type (not landscape) background image with 979px Width by 1200px Height. I would like to set it to float left and show 100% full image height fixed without the need to scroll up/down (regardless of content length).

This is my CSS code but not working.

img, media {
  max-width: 100%;
}


    body 
    {
        background-color: white;
        background-image: url('../images/bg-image.jpg');
        background-size: auto 100%;
        background-repeat: no-repeat;
        background-position: left top;
    }

You can do it with the code you have. You need to ensure that the html and body are set to 100% height though

DEMO http://jsfiddle.net/kevinPHPkevin/a7eGN/

html, body {
    height:100%;
} 
body 
    {
        background-color: white;
        background-image: url('http://www.canvaz.com/portrait/charcoal-1.jpg');
        background-size: auto 100%;
        background-repeat: no-repeat;
        background-position: left top;
    }