In CSS3, odd and even are used as keywords in pseudo-class selectors to select specified elements. odd represents odd elements and even represents even elements; odd and even are often used with ":nth-child(n )" selector, the syntax is "element: selector (odd or even) {css style code}".
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
odd represents an odd number and even represents an even number.
odd and even are often used to select specified elements in pseudo-class selectors.
The example is as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
<style>
p:nth-child(odd)
{
background:#ff0000;
}
p:nth-child(even)
{
background:#0000ff;
}
</style>
</head>
<body>
<h1>This is a heading</h1>
<p>The first paragraph.</p>
<p>The second paragraph.</p>
<p>The third paragraph.</p>
<p><b>注意:</b> Internet Explorer 8 and以及更早版本的浏览器 :nth-child()选择器.</p>
</body>
</html>Output result:
(Learning video sharing: css video tutorial)
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