body{
  background-image: url("cc.jpg");
  background-size:100%;

}

h1,h3{
  color:white;
}
div {
  display: inline-block;
}
img{
  height:400px;
  width:300px;
}
@keyframes fadein {
  from {opacity:0;}
  to {opacity:1;}
}
#row1 {
  animation: fadein 3s;
}

#row2 {
  animation: fadein 6s;
}

#row3 {
  animation: fadein 9s;
}

#row4{
  animation: fadein 12s;
}

@media only screen and (max-width: 800px){
  img{
    width:100px; height:75px;
  }
}