:nth-last-of-type()

版本：CSS3

:nth-last-of-type(an+b)这个 CSS 伪类，匹配那些在它之后有an+b-1个相同类型兄弟节点的元素，其中n为正值或零值。它基本上和:nth-of-type()一样，只是它从结尾处反序计数，而不是从开头处。

语法

E:nth-last-of-type(n){sRules}

匹配同类型中的倒数第n个同级兄弟元素E。

E元素是某个元素的子元素，E的父元素最高是<html>，即E可以是<html>的子元素，也就是说E可以是<body>
该选择符总是能命中父元素的倒数第n个为E的子元素，不论倒数第n个子元素是否为E

浏览器支持


IE9+以及新版浏览器都支持`:nth-last-of-type()`

例子

<style>
p:nth-last-of-type(2)
{
background:pink;
}
</style>


<p>元素1</p>
<p>元素2</p>
<p>元素3</p>

元素1

元素2

元素3


<div>
  <span>This is a span.</span>
  <span>This is another span.</span>
  <em>This is emphasized.</em>
  <span>Wow, this span gets limed!!!</span>
  <strike>This is struck through.</strike>
  <span>Here is one last span.</span>
</div>
<style>
em:nth-last-of-type(1) {color:red;}
span:nth-last-of-type(2) {background-color: lime;}
</style>

This is a span.This is another span.This is emphasized.Wow, this span gets limed!!!~~This is struck through.~~Here is one last span.