Html 如何设置偶数和奇数元素的样式？
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How can I style even and odd elements?
提问by Armand
Is it possible to use CSS pseudo-classes to select even and odd instances of list items?
是否可以使用 CSS 伪类来选择列表项的偶数和奇数实例？
I'd expect the following to produce a list of alternating colors, but instead I get a list of blue items:
我希望以下内容能够生成一个交替颜色的列表，但我得到的是一个蓝色项目列表：
<html>
<head>
<style>
li { color: blue }
li:odd { color:green }
li:even { color:red }
</style>
</head>
<body>
<ul>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
</ul>
</body>
</html>
回答by thirtydot
Demo: http://jsfiddle.net/thirtydot/K3TuN/1323/
演示：http: //jsfiddle.net/thirtydot/K3TuN/1323/
li {
color: black;
}
li:nth-child(odd) {
color: #777;
}
li:nth-child(even) {
color: blue;
}<ul>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
</ul>Documentation:
文档：
- https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-child
- http://caniuse.com/css-sel3(it works almost everywhere)
回答by Kevin Gurney
The problem with your CSS lies with the syntax of your pseudo-classes.
CSS 的问题在于伪类的语法。
The even and odd pseudo-classes should be:
偶数和奇数伪类应该是：
li:nth-child(even) {
color:green;
}
and
和
li:nth-child(odd) {
color:red;
}
回答by Dan S
Use this:
用这个：
li { color:blue; }
li:nth-child(odd) { color:green; }
li:nth-child(even) { color:red; }
See here for info on browser support: http://kimblim.dk/css-tests/selectors/
有关浏览器支持的信息，请参见此处：http: //kimblim.dk/css-tests/selectors/
回答by iDaniel88
li:nth-child(1n) { color:green; }
li:nth-child(2n) { color:red; }<ul>
<li>list element 1</li>
<li>list element 2</li>
<li>list element 3</li>
<li>list element 4</li>
</ul>See browser support here : CSS3 :nth-child() Selector
在此处查看浏览器支持： CSS3 :nth-child() 选择器
回答by Minh_Bu
the css odd and even is not support for IE. recommend you using solution below.
css 奇数和偶数不支持 IE。建议您使用下面的解决方案。
Best solution:
最佳解决方案：
li:nth-child(2n+1) { color:green; } // for odd
li:nth-child(2n+2) { color:red; } // for even
li:nth-child(1n) { color:green; }
li:nth-child(2n) { color:red; }
<ul>
<li>list element 1</li>
<li>list element 2</li>
<li>list element 3</li>
<li>list element 4</li>
</ul>
回答by Minh_Bu
but it's not working in IE. recommend using :nth-child(2n+1) :nth-child(2n+2)
但它在 IE 中不起作用。推荐使用 :nth-child(2n+1) :nth-child(2n+2)
li {
color: black;
}
li:nth-child(odd) {
color: #777;
}
li:nth-child(even) {
color: blue;
}<ul>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
</ul>回答by Agboola Feyikemi
The :nth-child(n) selector matches every element that is the nth child, regardless of type, of its parent. Odd and even are keywords that can be used to match child elements whose index is odd or even (the index of the first child is 1).
:nth-child(n) 选择器匹配作为其父元素的第 n 个子元素的每个元素，无论其类型如何。Odd 和 even 是可用于匹配索引为奇数或偶数（第一个子元素的索引为 1）的子元素的关键字。
this is what you want:
这就是你想要的：
<html>
<head>
<style>
li { color: blue }<br>
li:nth-child(even) { color:red }
li:nth-child(odd) { color:green}
</style>
</head>
<body>
<ul>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
</ul>
</body>
</html>
回答by Sheo Dayal Singh
Below is the example of even and odd css color apply
下面是偶数和奇数 css 颜色应用的例子
<html>
<head>
<style>
p:nth-child(even) {
background: red;
}
p:nth-child(odd) {
background: green;
}
</style>
</head>
<body>
<p>The first Odd.</p>
<p>The second Even.</p>
<p>The third Odd.</p>
<p>The fourth Even.</p>
</body>
</html>
回答by Ashwin Vinod Krishnan
<ul class="names" id="names_list">
<a href="javascript:void(0);"><span class="badge">1</span><li class="part1" id="1">Ashwin Nair</li></a>
<a href="javascript:void(0);"><span class="badge">2</span><li class="part2" id="2">Anil Reddy</li></a>
<a href="javascript:void(0);"><span class="badge">0</span><li class="part1" id="3">Chirag</li></a>
<a href="javascript:void(0);"><span class="badge">0</span><li class="part2" id="4">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">0</span><li class="part1" id="15">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">0</span><li class="part2" id="16">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">5</span><li class="part1" id="17">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">6</span><li class="part2" id="18">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">1</span><li class="part1" id="19">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">2</span><li class="part2" id="188">Anil Reddy</li></a>
<a href="javascript:void(0);"><span class="badge">0</span><li class="part1" id="111">Bhavesh</li></a>
<a href="javascript:void(0);"><span class="badge">0</span><li class="part2" id="122">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">0</span><li class="part1" id="133">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">0</span><li class="part2" id="144">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">5</span><li class="part1" id="199">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">6</span><li class="part2" id="156">Ashwin</li></a>
<a href="javascript:void(0);"><span class="badge">1</span><li class="part1" id="174">Ashwin</li></a>
</ul>
$(document).ready(function(){
var a=0;
var ac;
var ac2;
$(".names li").click(function(){
var b=0;
if(a==0)
{
var accc="#"+ac2;
if(ac=='part2')
{
$(accc).css({
"background": "#322f28",
"color":"#fff",
});
}
if(ac=='part1')
{
$(accc).css({
"background": "#3e3b34",
"color":"#fff",
});
}
$(this).css({
"background":"#d3b730",
"color":"#000",
});
ac=$(this).attr('class');
ac2=$(this).attr('id');
a=1;
}
else{
var accc="#"+ac2;
//alert(accc);
if(ac=='part2')
{
$(accc).css({
"background": "#322f28",
"color":"#fff",
});
}
if(ac=='part1')
{
$(accc).css({
"background": "#3e3b34",
"color":"#fff",
});
}
a=0;
ac=$(this).attr('class');
ac2=$(this).attr('id');
$(this).css({
"background":"#d3b730",
"color":"#000",
});
}
});
