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CSS选择前几个元素、后几个元素或者指定元素

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  • Post category:其他


<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1">
		<title></title>
		<style type="text/css">
			#nth-test div:nth-child(-n + 4) {
				background-color: red;
			}
		</style>
	</head>
	<body>
		<div id="nth-test">
			<div>1</div>
			<div>2</div>
			<div>3</div>
			<div>4</div>
			<div>5</div>
			<div>6</div>
			<div>7</div>
		</div>
	</body>
</html>

🍒选择前四个：

#nth-test div:nth-child(-n + 4) {
	background-color: red;
}

🍒 选择第3个往后的：

#nth-test div:nth-child(n + 3) {
	background-color: red;
}

🍒选择偶数元素：

#nth-test div:nth-child(2n) {
	background-color: red;
}

🍒选基数元素：

#nth-test div:nth-child(2n+1) {
	background-color: red;
}


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