@keyframes

* {
 margin: 0;
 padding: 0;
}

.main {
 height: 600px;
 width: 900px;
 position: absolute;
 top: 50%;
 left: 50%;
 margin-top: -300px;
 margin-left: -450px;
}

.wrapper {
 width: 33.3%;
 height: 100%;
 float: left;
}

#div1, #div2, #div3 {
 height: 150px;
 width: 150px;
 float: left;
 position: relative;
 top: 50%;
 left: 50%;
 margin-top: -75px;
 margin-left: -75px;
}

#div1 {
 animation-name: anim1;
 -moz-animation-name: anim1;
 -o-animation-name: anim1;
 -webkit-animation-name: anim1;
 animation-duration: 3s;
 -moz-animation-duration: 3s;
 -o-animation-duration: 3s;
 -webkit-animation-duration: 3s;
 animation-iteration-count: infinite;
 -moz-animation-iteration-count: infinite;
 -o-animation-iteration-count: infinite;
 -webkit-animation-iteration-count: infinite;
}

@keyframes anim1 {
 from {
  background-color: #3BA9DE;
 }
 to {
  top: 80px;
  background-color: #A3E61D;
 }
}

@-moz-keyframes anim1 {
 from {
  background-color: #3BA9DE;
 }
 to {
  top: 80px;
  background-color: #A3E61D;
 }
}

@-o-keyframes anim1 {
 from {
  background-color: #3BA9DE;
 }
 to {
  top: 80px;
  background-color: #A3E61D;
 }
}

@-webkit-keyframes anim1 {
 from {
  background-color: #3BA9DE;
 }
 to {
  top: 80px;
  background-color: #A3E61D;
 }
}

#div2 {
 animation-name: anim2;
 -moz-animation-name: anim2;
 -o-animation-name: anim2;
 -webkit-animation-name: anim2;
 animation-duration: 3s;
 -moz-animation-duration: 3s;
 -o-animation-duration: 3s;
 -webkit-animation-duration: 3s;
 animation-iteration-count: infinite;
 -moz-animation-iteration-count: infinite;
 -o-animation-iteration-count: infinite;
 -webkit-animation-iteration-count: infinite;
}

@keyframes anim2 {
 from {
  background-color: #A3E61D;
 }
 to {
  transform: scale(1.3, 1.3);
  -moz-transform: scale(1.3, 1.3);
  -o-transform: scale(1.3, 1.3);
  -webkit-transform: scale(1.3, 1.3);
  -ms-transform: scale(1.3, 1.3);
  background-color: #852E76;
 }
}

@-moz-keyframes anim2 {
 from {
  background-color: #A3E61D;
 }
 to {
  transform: scale(1.3, 1.3);
  -moz-transform: scale(1.3, 1.3);
  -o-transform: scale(1.3, 1.3);
  -webkit-transform: scale(1.3, 1.3);
  -ms-transform: scale(1.3, 1.3);
  background-color: #852E76;
 }
}

@-o-keyframes anim2 {
 from {
  background-color: #A3E61D;
 }
 to {
  transform: scale(1.3, 1.3);
  -moz-transform: scale(1.3, 1.3);
  -o-transform: scale(1.3, 1.3);
  -webkit-transform: scale(1.3, 1.3);
  -ms-transform: scale(1.3, 1.3);
  background-color: #852E76;
 }
}

@-webkit-keyframes anim2 {
 from {
  background-color: #A3E61D;
 }
 to {
  transform: scale(1.3, 1.3);
  -moz-transform: scale(1.3, 1.3);
  -o-transform: scale(1.3, 1.3);
  -webkit-transform: scale(1.3, 1.3);
  -ms-transform: scale(1.3, 1.3);
  background-color: #852E76;
 }
}

#div3 {
 animation-name: anim3;
 -moz-animation-name: anim3;
 -o-animation-name: anim3;
 -webkit-animation-name: anim3;
 animation-duration: 3s;
 -moz-animation-duration: 3s;
 -o-animation-duration: 3s;
 -webkit-animation-duration: 3s;
 animation-iteration-count: infinite;
 -moz-animation-iteration-count: infinite;
 -o-animation-iteration-count: infinite;
 -webkit-animation-iteration-count: infinite;
}

@keyframes anim3 {
 from {
  top: 300px;
  background-color: #3BA9DE;
 }
 to {
  top: 520px;
  background-color: #A3E61D;
 }
}

@-moz-keyframes anim3 {
 from {
  top: 300px;
  background-color: #3BA9DE;
 }
 to {
  top: 520px;
  background-color: #A3E61D;
 }
}

@-o-keyframes anim3 {
 from {
  top: 300px;
  background-color: #3BA9DE;
 }
 to {
  top: 520px;
  background-color: #A3E61D;
 }
}

@-webkit-keyframes anim3 {
 from {
  top: 300px;
  background-color: #3BA9DE;
 }
 to {
  top: 520px;
  background-color: #A3E61D;
 }
}