Question

是否可以在列表项上使用CSS伪类？

我希望以下内容能够生成交替颜色的列表，但我会得到一个蓝色项目列表：

<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>

Answer 1

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：

https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-child
http://caniuse.com/css-sel3（几乎无处不在）

Answer 2

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;
}

演示：http://jsfiddle.net/q76qS/5/

Answer 3

使用此：

li { color:blue; }
li:nth-child(odd) { color:green; }
li:nth-child(even) { color:red; }

有关浏览器支持的信息，请参阅此处： http://kimblim.dk/css-tests/selectors/

Answer 4

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>

请在此处查看浏览器支持： CSS3 :nth-child() Selector

Answer 5

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>

Answer 6

，但是在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>

Answer 7

：nth-child（n）选择器匹配作为父元素的第n个子元素的每个元素（无论类型如何）。奇数和偶数是关键字，可用于匹配索引为奇数或偶数（第一个孩子的索引为1）的子元素。

这就是您想要的：

<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>

Answer 8

下面是偶数和奇数css颜色应用的示例

<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>

Answer 9

 <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",
            });

            }

        });

使用CSS：even和：带有列表项的奇数伪类

9 个答案: