我正在试验伪元素，我想知道为什么
.container::after<!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">
<link rel="stylesheet" href="style.css">
<title>Document</title>
</head>
<body>
<header>
<h1>stuff</h1>
</header>
<main>
<div class="container">I am a container</div>
</main>
</body>
</html>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
height: 100vh;
}
header {
position: sticky;
top: 0;
display: flex;
justify-content: center;
align-items: center;
padding: 0.3rem;
background-color: steelblue;
z-index: 1;
}
main {
display: flex;
flex-flow: column nowrap;
justify-content: center;
align-items: center;
font-size: 2rem;
background-color: grey;
height: 100%;
position: relative;
}
div {
border: 10px solid red;
background-color: white;
}
main:hover .container {
transform: rotate(360deg);
color: purple;
transition: all 2s;
}
main .container::after {
position: absolute;
top: 200px;
left: 100px;
background-color: white;
color: gold;
content: "after div";
}
我试着把
position: relative
在 div 元素上。但这不是我想要的。显然 ::after 元素在动画期间与其父元素 (div) 相关，但这是为什么呢？我可以避免吗？