@keyframes heartbeat
{
  0% {
    transform: scale( .75);
  }
  20% {
    transform: scale( 1);
  }
  40% {
    transform: scale( .75);
  }
  60% {
    transform: scale( 1);
  }
  80% {
    transform: scale( .75);
  }
  100% {
    transform: scale( .75);
  }
}

#heart_big
{
  position: relative;
  width: 100px;
  height: 90px;
}

#heart_big:before,
#heart_big:after
{
  position: absolute;
  content: "";
  left: 50px;
  top: 0;
  width: 50px;
  height: 80px;
  background: red;
  -moz-border-radius: 50px 50px 0 0;
  border-radius: 50px 50px 0 0;
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
  -webkit-transform-origin: 0 100%;
  -moz-transform-origin: 0 100%;
  -ms-transform-origin: 0 100%;
  -o-transform-origin: 0 100%;
  transform-origin: 0 100%;
}

#heart_big:after
{
  left: 0;
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
  -webkit-transform-origin: 100% 100%;
  -moz-transform-origin: 100% 100%;
  -ms-transform-origin: 100% 100%;
  -o-transform-origin: 100% 100%;
  transform-origin: 100% 100%;
}



#heart_small
{
  position: relative;
  width: 40px;
  height: 36px;
}

.animate
{
  animation: heartbeat 1s 2;
}

#heart_small:before,
#heart_small:after
{
  position: absolute;
  content: "";
  left: 20px;
  top: 0;
  width: 20px;
  height: 32px;
  background: red;
  -moz-border-radius: 20px 20px 0 0;
  border-radius: 20px 20px 0 0;
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
  -webkit-transform-origin: 0 100%;
  -moz-transform-origin: 0 100%;
  -ms-transform-origin: 0 100%;
  -o-transform-origin: 0 100%;
  transform-origin: 0 100%;
}

#heart_small:after
{
  left: 0;
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
  -webkit-transform-origin: 100% 100%;
  -moz-transform-origin: 100% 100%;
  -ms-transform-origin: 100% 100%;
  -o-transform-origin: 100% 100%;
  transform-origin: 100% 100%;
}