使用css3实现文章新闻列表排行榜（数字）

<style>
    li{width:300px; border-bottom: 1px dotted #ccc; line-height: 30px; height: 30px; overflow:hidden }
    li{list-style: decimal inside; }
</style>
<ul>
    <li>文章1</li>
    <li>文章2</li>
</ul>

<style>
    ul{counter-reset:section;}
    li{width:300px; border-bottom: 1px dotted #ccc; line-height: 30px; height: 30px; overflow:hidden }
    li:before{counter-increment:section;content:counter(section);display:inline-block;padding:0 6px;margin-right:10px;height:18px;line-height:18px;background:#717070;color:#fff;border-radius:3px;font-size:9px}
    li:nth-child(1):before{background:#ff6a00}
    li:nth-child(2):before{background:#107db4}
    li:nth-child(3):before{background:#56ae11}
</style>
<ul>
    <li>文章1</li>
    <li>文章2</li>
    <li>文章3</li>
    <li>文章4</li>
</ul>

<style>
    ul{counter-reset:section;}
    li{width:300px; border-bottom: 1px dotted #ccc; line-height: 30px; height: 30px; overflow:hidden }
    li i{display:inline-block;font-style:initial;padding:0 6px;margin-right:10px;height:18px;line-height:18px;background:#717070;color:#fff;border-radius:3px;font-size:9px}
    .red1{background:#ff6a00}
    .red2{background:#107db4}
    .red3{background:#56ae11}
</style>
<ul>
    <li>文章1</li>
    <li>文章2</li>
    <li>文章3</li>
    <li>文章4</li>
</ul>
<script>
    listsort()
    //显示排行
    function listsort() {
        var index = 0;
        $("li").each(function () {
            index++;
            var num = $("<i>" + index + "</i>");
            if (index <= 3)
                num.addClass("red" +index);
            $(this).prepend(num);
        });
    }
</script>