* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background: black;
}

.heart {
  position: fixed;
  top: 30%;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 200px;
  animation: shake 0.8s infinite forwards;
}

.heart div {
  position: absolute;
  width: 100%;
  height: 100%;
  animation: shadow 0.8s infinite forwards;
  background: pink;
}

.topLeft,
.topRight {
  border-radius: 100px 100px 0 0;
}

.topLeft {
  transform: translate(-50px, 0) rotate(-45deg);
}

.topRight {
  transform: translate(50px, 0) rotate(45deg);
}

.bottom {
  transform: translate(0, 64px) rotate(45deg) scale(0.9, 0.9);
}

/* 定义动画 */

@keyframes shake {
  from {
    transform: translateX(-50%) scale(0.8);
  }

  to {
    transform: translateX(-50%) scale(1.2);
  }
}

@keyframes shadow {
  from {
  }

  to {
    box-shadow: 0px 0px 50px pink;
  }
}