Auto image resize based on browser window dimensions

Question

I have a basic web page layout with a 100% width header and a sticky footer. In between the two I have a large graphic.

I would like the graphic to resize dynamicall

Answer 1

img.thespecialimage {
  min-height : 100%;
  min-width : 100%;
  max-height : 100%;
  max-width : 100%;
}