/* make keyframes that tell the start state and the end state of our object */
@-webkit-keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
@-moz-keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
 
.fade-in {
    opacity:0;  /* make things invisible upon start */
    -webkit-animation:fadeIn ease-in 1;  /* call our keyframe named fadeIn, use animattion ease-in and repeat it only 1 time */
    -moz-animation:fadeIn ease-in 1;
    animation:fadeIn ease-in 1;
 
    -webkit-animation-fill-mode:forwards;  /* this makes sure that after animation is done we remain at the last keyframe value (opacity: 1)*/
    -moz-animation-fill-mode:forwards;
    animation-fill-mode:forwards;
 
    -webkit-animation-duration:1s;
    -moz-animation-duration:1s;
    animation-duration:1s;
}
 
.fade-in.one {
-webkit-animation-delay: 0.7s;
-moz-animation-delay: 0.7s;
animation-delay: 0.7s;
}
 
.fade-in.two {
-webkit-animation-delay: 1.2s;
-moz-animation-delay:1.2s;
animation-delay: 1.2s;
}
 
.fade-in.three {
-webkit-animation-delay: 1.6s;
-moz-animation-delay: 1.6s;
animation-delay: 1.6s;
}
 
/*---make a basic box ---*/
.box{
width: 200px;
height: 200px;
position: relative;
margin: 10px;
float: left;
border: 1px solid #333;
background: #999;
 
}