css-animation animation realizes the beating heart
1. Heart structure: two circles and a square
2. Through the rotation and scaling of transform and animation animation, the heart beats. The html code is as follows
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
body {
padding: 20vw;
}
.love {
width: 6vw;
height: 6vw;
background-color: red;
transform: rotate(45deg);
box-shadow: 0 0 1.5vw 0 red;
animation: pengpeng 1s infinite;
}
.love::after,
.love::before {
content: '';
width: 6vw;
height: 6vw;
border-radius: 50%;
position: absolute;
background-color: red;
box-shadow: 0 0 1.2vw 0 red;
}
.love::after {
right: 2.8vw;
}
.love::before {
top: -2.8vw;
}
@keyframes pengpeng {
0% {
transform: rotate(45deg) scale(0.9);
}
50% {
transform: rotate(45deg) scale(1);
}
100% {
transform: rotate(45deg) scale(0.9);
}
}
</style>
</head>
<body>
<div class='love'></div>
</body>
</html>
