抖音刷到[亿以网络]网课，学起来！
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
<title>跳动的心</title>
<style>
body {
background: black;
}
.heart {
margin: 200px auto;
width: 200px;
height: 200px;
animation: beat 1s linear infinite alternate;
}
.heart_left, .heart_right {
float: left;
width: 100px;
height: 160px;
border-radius:50px 50px 0 0;
background: hotpink;
box-shadow: 0 0 30px 0 hotpink;
}
.heart_left {
transform: translateX(28px) rotate(-45deg);
}
.heart_right {
transform: translateX(-28px) rotate(45deg);
}
@keyframes beat {
0% { transform:scale(1); }
100% { transform:scale(1.1); }
}
</style>
</head>
<body>
<div class="heart">
<div class="heart_left"></div>
<div class="heart_right"></div>
</div>
</body>
</html>