CSS 模拟心的跳动

2018-09-09 网页编程网 网页编程网

<html><head></head><body><div class="big">
  <div id="heart" class="left"></div>
  <div id="heart" class="right"></div>
  <div id="heart" class="bottom"></div>
</div><style>* {
    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);
    }
}</style></body></html>

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