跳动的心
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
body{
background-color: pink;
}
.wrap {
width: 450px;
height: 400px;
margin: 0 auto;
margin-top: 100px;
position: relative;
animation: sport 1s ease-in 0s infinite alternate;
}
@keyframes sport {
from {
width: 450px;
height: 400px;
}
to {
width: 500px;
height: 450px;
}
}
.left, .right {
width: 250px;
height: 250px;
background-color: red;
border-radius: 50%;
position: absolute;
box-sizing: border-box;
animation: move 1s ease-in 0s infinite alternate;
}
.left {
left: 0;
top: 0;
z-index: 999;
box-shadow: -10px -5px 40px 10px red;
}
.right {
right: 0;
top: 0;
box-shadow: 10px -5px 40px 10px red;
}
.bottom {
width: 250px;
height: 250px;
background-color: red;
position: absolute;
left: 50%;
transform: translateX(-50%) rotateZ(45deg);
bottom: 50px;
box-shadow: 0px 0px 30px 10px red;
animation: move 1s ease-in 0s infinite alternate;
}
@keyframes move {
from {
width: 250px;
height: 250px;
}
to {
width: 300px;
height: 300px;
}
}
</style>
</head>
<body>
<div class="wrap">
<div class="left"></div>
<div class="right"></div>
<div class="bottom"></div>
</div>
</body>
</html>
