css最后一个子选择器：选择特定类的最后一个元素，而不是父类内部的最后一个子元素？<div class="commentList">
<article class="comment " id="com21"></article>
<article class="comment " id="com20"></article>
<article class="comment " id="com19"></article>
<div class="something"> hello </div></div>我想选择#com19 ?.comment {
width:470px;
border-bottom:1px dotted #f0f0f0;
margin-bottom:10px;}.comment:last-child {
border-bottom:none;
margin-bottom:0;}只要我有另一个，那就不起作用了。div.something作为评论员的最后一个孩子。在这种情况下，是否可以使用最后一个子选择器来选择article.comment?jsFiddle
3 回答
尚方宝剑之说
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float: right;float: left;
/* 1: Apply style to ALL instances */#header .some-class {
padding-right: 0;}/* 2: Remove style from ALL instances except FIRST instance */#header .some-class~.some-class {
padding-right: 20px;}<!doctype html><head><title>CSS Test</title><style type="text/css">.some-class { margin: 0; padding: 0 20px;
list-style-type: square; }.lfloat { float: left; display: block; }.rfloat { float: right; display: block; }
/* apply style to last instance only */#header .some-class {
border: 1px solid red;
padding-right: 0;}#header .some-class~.some-class {
border: 0;
padding-right: 20px;}</style></head><body><div id="header">
<img src="some_image" title="Logo" class="lfloat no-border"/>
<ul class="some-class rfloat">
<li>List 1-1</li>
<li>List 1-2</li>
<li>List 1-3</li>
</ul>
<ul class="some-class rfloat">
<li>List 2-1</li>
<li>List 2-2</li>
<li>List 2-3</li>
</ul>
<ul class="some-class rfloat">
<li>List 3-1</li>
<li>List 3-2</li>
<li>List 3-3</li>
</ul>
<img src="some_other_img" title="Icon" class="rfloat no-border"/></div></body></html>- 3 回答
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