#background {

    position: fixed;
    left:     0px;
    top:      0px;
    width:    100%;
    height:   100%;
    display:  block;
    z-Index: -1000;
}

/*GROW*/

.grow img, .grow div {
  height: 100%;
  width:  100%;
 
  -webkit-transition: all 1s ease;
     -moz-transition: all 1s ease;
       -o-transition: all 1s ease;
      -ms-transition: all 1s ease;
          transition: all 1s ease;
}
 
.grow img:hover {
  width:  110%;
  height: 110%;
}