<div class="spinner">
  <div class="dot1"></div>
  <div class="dot2"></div>
</div>

.spinner {
  margin: 100px auto;
  width: 90px;
  height: 90px;
  position: relative;
  text-align: center;
   
  -webkit-animation: rotate 2.0s infinite linear;
  animation: rotate 2.0s infinite linear;
}
 
.dot1, .dot2 {
  width: 60%;
  height: 60%;
  display: inline-block;
  position: absolute;
  top: 0;
  background-color: #67CF22;
  border-radius: 100%;
   
  -webkit-animation: bounce 2.0s infinite ease-in-out;
  animation: bounce 2.0s infinite ease-in-out;
}
 
.dot2 {
  top: auto;
  bottom: 0px;
  -webkit-animation-delay: -1.0s;
  animation-delay: -1.0s;
}
 
@-webkit-keyframes rotate { 100% { -webkit-transform: rotate(360deg) }}
@keyframes rotate { 100% { transform: rotate(360deg); -webkit-transform: rotate(360deg) }}
 
@-webkit-keyframes bounce {
  0%, 100% { -webkit-transform: scale(0.0) }
  50% { -webkit-transform: scale(1.0) }
}
 
@keyframes bounce {
  0%, 100% {
    transform: scale(0.0);
    -webkit-transform: scale(0.0);
  } 50% {
    transform: scale(1.0);
    -webkit-transform: scale(1.0);
  }
}