<!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>:非选择器</title>
<style>
.box {
display: flex;
}
li {
list-style-type: none;
margin: 0;
padding: 0 1rem;
}
li:not(:last-child) {
border-right: 2px solid rgb(87, 85, 85);
}
</style>
</head>
<body>
<!-- li:not(:last-child) 指定样式应应用于所有li 元素除外:last-child 。 -->
<ul class="box">
<li>one</li>
<li>two</li>
<li>three</li>
<li>fore</li>
<li>five</li>
<li>six</li>
</ul>
</body>
</html>
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