How to show full height background image?

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 t

Answer 1

CSS can do that with background-size: cover;

But to be more detailed and support more browsers...

Use aspect ratio like this:

 aspectRatio      = $bg.width() / $bg.height();

FIDDLE