類孩子的之間的空間,我有這樣的代碼在HTML沒有在CSS
<div class="small_world_news">
<div class="small_world_news_article_box">
<div>
<img class="small_picture_world_news" src="http://placehold.it/100x100">
<h4 class="small_title_world_news"> Doors open to Japan's new 30B industry </h4>
<ul class="author_etc">
<li>December 14, 2016</li>
<li>
<div class="first">by</div>
<div class="blue">John Doe</div>
</li>
</ul>
</div>
<div>
<img class="small_picture_world_news" src="http://placehold.it/100x100">
<h4 class="small_title_world_news"> Doors open to Japan's new 30B industry </h4>
<ul class="author_etc">
<li>December 14, 2016</li>
<li>
<div class="first">by</div>
<div class="blue">John Doe</div>
</li>
</ul>
</div>
<div>
<img class="small_picture_world_news" src="http://placehold.it/100x100">
<h4 class="small_title_world_news"> Doors open to Japan's new 30B industry </h4>
<ul class="author_etc">
<li>December 14, 2016</li>
<li>
<div class="first">by</div>
<div class="blue">John Doe</div>
</li>
</ul>
</div>
</div>
</div>
我需要firstarticle-secondarticle和secondarticle-thirdarticle之間20px
空間。另外我需要30px
上一篇文章後的空間。我知道我可以製作姓名div,但我想要帶着「small_world_news_Article_box」類的孩子。 但是這個代碼沒有工作。
.small_world_news_article_box {
margin-bottom: 20px;
}
.small_world_news_article_box:last-child {
margin-bottom: 30px;
}
的可能的複製[:最後一個孩子無法正常運行(http://stackoverflow.com/questions/18995362/last-child-not-working-as-expected) –