How to achieve different styles for odd and even numbers in css
In CSS, you can use the ":nth-of-type()" selector with the keywords "even" and "odd" to select even-numbered rows and odd-numbered rows elements respectively, and add different styles; Syntax "Element:nth-of-type(odd){One style code}Element:nth-of-type(even){Another style code}". The keyword "even" is used to select every even child element, and the keyword "odd" is used to select every odd child element.
The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.
In css, you can use the :nth-of-type() selector to select elements in even rows and odd rows respectively, and add different styles.
:nth-of-type(n) selector selects all elements that are the nth child element of a specific type of its parent element.
When used with the keywords even and odd, you can select even and odd rows
even selects each even sub-element.
odd Select every odd child element.
Example: Specify two different background colors for odd and even p elements
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
p:nth-of-type(odd)
{
background:#ff0000;
}
p:nth-of-type(even)
{
background:#0000ff;
}
</style>
</head>
<body>
<h1 id="This-nbsp-is-nbsp-a-nbsp-heading">This is a heading</h1>
<p>The first paragraph.</p>
<p>The second paragraph.</p>
<p>The third paragraph.</p>
</body>
</html>
You can also select even numbers by formula rows and odd-numbered rows, but this will be a bit troublesome:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
p:nth-of-type(2n)
{
background:#ff0000;
}
p:nth-of-type(2n+1)
{
background:#0000ff;
}
</style>
</head>
<body>
<h1 id="This-nbsp-is-nbsp-a-nbsp-heading">This is a heading</h1>
<p>The first paragraph.</p>
<p>The second paragraph.</p>
<p>The third paragraph.</p>
</body>
</html>
The formula 2n means selecting even-numbered sub-elements, 2n 1 means Select odd-numbered subelements.
(Learning video sharing: Getting started with web front-end)
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