代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.wrap {
margin: 100px 100px;
/* border: 1px solid green; */
/* overflow: hidden; */
}
.wrap .heart {
width: 200px;
height: 300px;
/* margin: 100px auto; */
position: relative;
transition: all .3;
animation: live 2s infinite alternate ease-in-out;
}
.wrap .heart::before, .wrap .heart::after {
content: "";
display: block;
width: 100%;
height: 100%;
position: absolute;
top: 0;
left: 0;
border-radius: 100px 100px 0 0;
background: red;
transform: rotate(-45deg);
}
.wrap .heart::after {
left: 71px;
transform: rotate(45deg);
}
@keyframes live {
0% {
transform: scale(1.0);
}
100% {
transform: scale(1.3);
}
}
</style>
</head>
<body>
<div class="wrap">
<div class="heart"></div>
</div>
</body>
</html>此方法特点:纯CSS3+HTML,但比例需要修改像素来调。练习CSS可以采取此措施。 若实际使用,则最好使用方法2
效果

简介:font-awesome 是一个图标字体库和CSS框架 里面便有爱心图标。 可自定义颜色(color: red;)以及大小(font-size: 100px;)
代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<link href="https://cdn.bootcss.com/font-awesome/5.8.1/css/all.min.css" rel="stylesheet">
<style>
.wrap {
height: 500px;
width: 500px;
margin: 100px auto;
}
.heart {
color: red;
font-size: 200px;
animation: live 1s infinite alternate ease-in-out;
}
@keyframes live {
0% {
transform: scale(1.0);
}
100% {
transform: scale(1.3);
}
}
</style>
</head>
<body>
<div class="wrap">
<div class="heart">
<i class="fa fa-heart" aria-hidden="true"></i>
</div>
</div>
</body>
</html>只需引入cdn即可:
<link href="https://cdn.bootcss.com/font-awesome/5.8.1/css/all.min.css" rel="stylesheet">结果
