<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
div {
300px;
height: 300px;
border: 1px solid #000;
}
div::before {
content: '我';
100px;
height: 100px;
background-color: pink;
display: inline-block;
}
div::after {
content: '小猪佩琪';
100px;
height: 100px;
background-color: pink;
display: inline-block;
}
</style>
</head>
<body>
<div>是</div>
</body>
</html>