利用html+css3制作心的跳动动画

* { margin: 0; padding: 0;}body { background-color: #D4CECE;}.big { width: 200px; height: 200px; margin: 0 auto; position: relative; animation: heartAnimation 0.7s linear 0s infinite;}.big #heart { margin: 5px 0; width: 100%; height: 100%; background-color: #FF0606; position: absolute;}.left,.right { border-radius: 100px 100px 0 0; /*左上 右上 右下 左下*/ box-shadow: 0px 0px 20px #FD0707;}.bottom { box-shadow: 0px 0px 20px #FD0707;}.left { transform: translate(-50px,150px) rotate(-45deg); /*translate()位移 rotate() 旋转角度*/}.right { transform: translate(50px,150px) rotate(45deg);}.bottom { transform: translate(0,214px) rotate(45deg) scale(.9,.9) /*scale:定义 2D 缩放转换。*/}/*动画效果*/@keyframes heartAnimation{ form { transform: scale(0.9,0.9); } to { transform: scale(1.1,1.1); }}