<div id="wrapper">
  <a href="#" class="my-super-cool-btn">
    <div class="dots-container">
      <div class="dot"></div>
      <div class="dot"></div>
      <div class="dot"></div>
      <div class="dot"></div>
    </div>
    <span>Go!</span>
  </a>
</div>

@import url('https://fonts.googleapis.com/css?family=Montserrat:900');

body{
  margin:0;
  padding:0;
  background-color:#292929;
  font-family: 'Montserrat', sans-serif;
}
#wrapper{
  width:100vw;
  height:100vh;
  box-sizing:border-box;
  display:flex;
  align-items:center;
  justify-content:center;
}
.my-super-cool-btn{
  position:relative;
  text-decoration:none;
  color:#fff;
  letter-spacing:1px;
  font-size:2rem;
  box-sizing:border-box;
}
.my-super-cool-btn span{
  position:relative;
  box-sizing:border-box;
  display:flex;
  align-items:center;
  justify-content:center;
  width:200px;
  height:200px;
}
.my-super-cool-btn span:before{
  content:'';
  width:100%;
  height:100%;
  display:block;
  position:absolute;
  border-radius:100%;
  border:7px solid #F3CF14;
  box-sizing:border-box;
  transition: all .85s cubic-bezier(0.25, 1, 0.33, 1);
  box-shadow: 0 30px 85px rgba(0,0,0,0.14), 0 15px 35px rgba(0,0,0,0.14);
}
.my-super-cool-btn:hover span:before{
  transform:scale(0.8);
  box-shadow: 0 20px 55px rgba(0,0,0,0.14), 0 15px 35px rgba(0,0,0,0.14);
}
.my-super-cool-btn .dots-container{
  opacity:0;
  animation: intro 1.6s;
  animation-fill-mode: forwards;
}
.my-super-cool-btn .dot{
  width:8px;
  height:8px;
  display:block;
  background-color:#F3CF14;
  border-radius:100%;
  position:absolute;
  transition: all .85s cubic-bezier(0.25, 1, 0.33, 1);
}
.my-super-cool-btn .dot:nth-child(1){
  top:50px;
  left:50px;
  transform:rotate(-140deg);
  animation: swag1-out 0.3s;
  animation-fill-mode: forwards;
  opacity:0;
}
.my-super-cool-btn .dot:nth-child(2){
  top:50px;
  right:50px;
  transform:rotate(140deg);
  animation: swag2-out 0.3s;
  animation-fill-mode: forwards;
  opacity:0;
}
.my-super-cool-btn .dot:nth-child(3){
  bottom:50px;
  left:50px;
  transform:rotate(140deg);
  animation: swag3-out 0.3s;
  animation-fill-mode: forwards;
  opacity:0;
}
.my-super-cool-btn .dot:nth-child(4){
  bottom:50px;
  right:50px;
  transform:rotate(-140deg);
  animation: swag4-out 0.3s;
  animation-fill-mode: forwards;
  opacity:0;
}
.my-super-cool-btn:hover .dot:nth-child(1){
  animation: swag1 0.3s;
  animation-fill-mode: forwards;
}
.my-super-cool-btn:hover .dot:nth-child(2){
  animation: swag2 0.3s;
  animation-fill-mode: forwards;
}
.my-super-cool-btn:hover .dot:nth-child(3){
  animation: swag3 0.3s;
  animation-fill-mode: forwards;
}
.my-super-cool-btn:hover .dot:nth-child(4){
  animation: swag4 0.3s;
  animation-fill-mode: forwards;
}
@keyframes intro {
   0% {
     opacity:0;
  }
  100% {
     opacity:1;
  }
}
@keyframes swag1 {
   0% {
     top:50px;
     left:50px;
     width:8px;
  }
  50% {
    width:30px;
    opacity:1;
  }
  100% {
     top:20px;
     left:20px;
     width:8px;
     opacity:1;
  }
}
@keyframes swag1-out {
   0% {
     top:20px;
     left:20px;
     width:8px;
  }
  50% {
     width:30px;
    opacity:1;
  }
  100% {
     top:50px;
     left:50px;
     width:8px;
    opacity:0;
  }
}
@keyframes swag2 {
   0% {
     top:50px;
     right:50px;
     width:8px;
  }
  50% {
    width:30px;
    opacity:1;
  }
  100% {
     top:20px;
     right:20px;
     width:8px;
     opacity:1;
  }
}
@keyframes swag2-out {
   0% {
     top:20px;
     right:20px;
     width:8px;
  }
  50% {
     width:30px;
    opacity:1;
  }
  100% {
     top:50px;
     right:50px;
     width:8px;
    opacity:0;
  }
}
@keyframes swag3 {
   0% {
     bottom:50px;
     left:50px;
     width:8px;
  }
  50% {
    width:30px;
    opacity:1;
  }
  100% {
     bottom:20px;
     left:20px;
     width:8px;
     opacity:1;
  }
}
@keyframes swag3-out {
   0% {
     bottom:20px;
     left:20px;
     width:8px;
  }
  50% {
     width:30px;
    opacity:1;
  }
  100% {
     bottom:50px;
     left:50px;
     width:8px;
    opacity:0;
  }
}
@keyframes swag4 {
   0% {
     bottom:50px;
     right:50px;
     width:8px;
  }
  50% {
    width:30px;
    opacity:1;
  }
  100% {
     bottom:20px;
     right:20px;
     width:8px;
     opacity:1;
  }
}
@keyframes swag4-out {
   0% {
     bottom:20px;
     right:20px;
     width:8px;
  }
  50% {
     width:30px;
    opacity:1;
  }
  100% {
     bottom:50px;
     right:50px;
     width:8px;
    opacity:0;
  }
}