.container{
 z-index:0;
    width:100%;
    height:100%;
 background-image: url(../Imgbts/mainFrontBackgroundImage.jpg);
 
  position:fixed;
   

}
.photo{
 position:absolute;
  animation:round 16s infinite;
  opacity:0;
  
}
@keyframes round{   
  55%{opacity:0;}
  40%{opacity:1;}
} 
img:nth-child(4){animation-delay:0s;}
img:nth-child(3){animation-delay:4s;}
img:nth-child(2){animation-delay:8s;}
img:nth-child(1){animation-delay:12s;}
#slideout {
  position: fixed;
  top: 40px;
  left: 0;
  -webkit-transition-duration: 0.3s;
  -moz-transition-duration: 0.3s;
  -o-transition-duration: 0.3s;
  transition-duration: 0.3s;
}
#slideout_inner {
  position: fixed;
  top: 40px;
  left: -250px;
  -webkit-transition-duration: 0.3s;
  -moz-transition-duration: 0.3s;
  -o-transition-duration: 0.3s;
  transition-duration: 0.3s;
}
#slideout:hover {
  left: 250px;
}
#slideout:hover #slideout_inner {
  left: 0;
}