是否可以使用CSS伪类选择列表项的偶数和奇数实例？
我希望以下内容会产生一系列交替的颜色，但我会得到蓝色项目的列表：
<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>
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>文档：
CSS的问题在于伪类的语法。
偶数和奇数伪类应该是：
li:nth-child(even) {
color:green;
}
和
li:nth-child(odd) {
color:red;
}
使用此：
li { color:blue; }
li:nth-child(odd) { color:green; }
li:nth-child(even) { color:red; }
请参阅此处以获取有关浏览器支持的信息：http://kimblim.dk/css-tests/selectors/
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>在此处查看浏览器支持：CSS3 :nth-child() Selector
css的奇数和偶数不支持IE。建议您使用下面的解决方案。
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>
下面是使用偶数和奇数css颜色的示例
<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>
但是它在IE中不起作用。建议使用：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> <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",
});
}
});