The transition properties allow you to customize the effect used to reveal the image once it has been loaded .

• transition: determines how the image will be revealed once loaded (default: fade). The possible values are:
  -fade, for a fade in effect
  -zoom, for a zoom effect
  -fade+zoom, for both  fade and zoom effects
  - ornone, for no transition
• transitionDelay: transition delay of the transition effect (default:  0ms).
• transitionDuration: duration of the transition effect (default:  400ms).
• transitionTimingFunction: CSS timing function applied to the transition effect (default: ease).