body {
  background: #333;
  color: #fff;
  font-family: sans-serif;
  font-size: 5em;
  margin-top: 1em;
  text-align: center;
  text-transform: uppercase;
}
.heart {
  background-color: red;
  display: inline-block;
  height: 40px;
  margin: 0 10px;
  position: relative;
  top: 0;  
  width: 40px;
  animation: pulse 1.3s ease infinite;  
}
@keyframes pulse {
  0% { transform: scale(1) rotate(-45deg); }
  50% { transform: scale(1.5) rotate(-45deg); }
  100% { transform: scale(1) rotate(-45deg); }
}
.heart:before,
.heart:after {
  content: "";
  background-color: red;
  border-radius: 50%;
  height: 40px;
  position: absolute;
  width: 40px;   
}
.heart:before {
  top: -20px;
  left: 0;
}
/* .heart:after {
  left: 20px;
  top: 0;
} */