.lazy_on {
   width: 200px;
   height: 200px;
   display: block;
   position: relative;
   background: url(../../_img/css/fond.jpg) no-repeat center scroll;
 		-webkit-background-size: contain; /* pour Chrome et Safari */
 		-moz-background-size: contain; /* pour Firefox */
 		-o-background-size: contain; /* pour Opera */
 		background-size: contain; /* version standardis�e */
}
.lazy_css {
  background-image: none !important;
  background-color: #F1F1FA;
}
img {
  background: #F1F1FA;
}