I was trying to resize image using media query. I am changing the background image url of <td> in media qury to resize the image on the fly.
Although it is working for iPhone6 (tested on Litmus) but it is not working with iPhone5 and lower versions.
I am using below url :

So using media query, I was trying to change height and width in above URL.

Anyone knows possible reason of failure or any other work-around??