title: CSS stretch or fit background image
body: <p>I wanted to stretch or fit my background image using css so it is always in 100% of width and height no matter what the screen size is. This is asked many times and everyone suggests to use background-size:100% and it will work. but using background-size only fits my image's width and the height is still cropped.<br/>
  I'll appreciate if someone can help me with this.<br/>
  Thans very much</p>