:nth-child不工作

Question

这是一个用于ajax加载帖子的wordpress插件的html

<div class="row newsrow">
  <div>
    <div id="ajax-load-more" class="ajax-load-more-wrap alm-0" data-alm-id="0" data-canonical-url="http://bayron.nl/" data-slug="home">
      <ul class="alm-listing alm-ajax  " data-repeater="default" data-post-type="post" data-post-format="" data-category="" data-category-not-in="" data-tag="" data-tag-not-in="" data-taxonomy="" data-taxonomy-terms="" data-taxonomy-operator="" data-taxonomy-relation=""
        data-meta-key="" data-meta-value="" data-meta-compare="" data-meta-relation="" data-meta-type="" data-year="" data-month="" data-day="" data-author="" data-post-in="" data-post-not-in="" data-exclude="" data-search="" data-custom-args="" data-post-status=""
        data-order="DESC" data-orderby="date" data-offset="0" data-posts-per-page="3" data-lang="" data-scroll="false" data-scroll-distance="150" data-max-pages="0" data-pause-override="false" data-pause="false" data-button-label="Older Posts" data-button-class=""
        data-destroy-after="" data-transition="fade" data-images-loaded="true">
        <div class="alm-reveal">
          <li>
            <div class="list-content">
              <img width="360" height="240" src="http://bayron.nl/wp-content/uploads/2017/01/helsinki.jpg" class="attachment-post-thumbnail size-post-thumbnail wp-post-image" alt="" srcset="http://bayron.nl/wp-content/uploads/2017/01/helsinki.jpg 360w, http://bayron.nl/wp-content/uploads/2017/01/helsinki-300x200.jpg 300w"
                sizes="(max-width: 360px) 100vw, 360px">
              <h3><a href="http://bayron.nl/2017/01/27/future-digital-finance-forum/" title="FUTURE DIGITAL FINANCE FORUM">FUTURE DIGITAL FINANCE FORUM</a></h3>
              <p>April 2017 | Helsinki | Keynote Speaker</p>
              <p>Future Digital Finance Forum gathers the pioneers and decision makers to discuss the opportunities and challenges caused by digitalization and disruption in the industry.</p>
            </div>
          </li>
          <li>
            <div class="list-content">
              <img width="384" height="240" src="http://bayron.nl/wp-content/uploads/2017/01/wroclaw.jpg" class="attachment-post-thumbnail size-post-thumbnail wp-post-image" alt="" srcset="http://bayron.nl/wp-content/uploads/2017/01/wroclaw.jpg 384w, http://bayron.nl/wp-content/uploads/2017/01/wroclaw-300x188.jpg 300w"
                sizes="(max-width: 384px) 100vw, 384px">
              <h3><a href="http://bayron.nl/2017/01/27/impactcee-2016-fintechinsurtech/" title="IMPACTCEE 2016  FINTECH/INSURTECH">IMPACTCEE 2016  FINTECH/INSURTECH</a></h3>
              <p>December 2016 | Wroclaw | Keynote Speaker</p>
              <p>This is the most content driven fintech congress in the Central Eastern Europe gathering the top industry innovators.</p>
            </div>
          </li>
          <li>
            <div class="list-content">
              <img width="360" height="191" src="http://bayron.nl/wp-content/uploads/2017/01/classof17.jpg" class="attachment-post-thumbnail size-post-thumbnail wp-post-image" alt="" srcset="http://bayron.nl/wp-content/uploads/2017/01/classof17.jpg 360w, http://bayron.nl/wp-content/uploads/2017/01/classof17-300x159.jpg 300w"
                sizes="(max-width: 360px) 100vw, 360px">
              <h3><a href="http://bayron.nl/2017/01/27/meet-the-11-startup-teams-from-our-fintech-cybersecurity-2017-class/" title="MEET THE 11 STARTUP TEAMS FROM OUR FINTECH &amp; CYBERSECURITY 2017 CLASS!">MEET THE 11 STARTUP TEAMS FROM OUR FINTECH &amp; CYBERSECURITY 2017 CLASS!</a></h3>
              <p>November 2016 | Startup Bootcamp</p>
              <p>On the 22-23 of November, Selection Days for our FinTech &amp; CyberSecurity program took place. The event was very special: not only it was selecting the first cohort for our recently announced FinTech &amp; CyberSecurity program but also
                celebrating the 100th startup selected for the programs in Amsterdam.<br> The event truly was a celebration of entrepreneurship, empowerment, ecosystem and innovation. <a href="https://youtu.be/uPsCgRjL6bc" target="_blank">Watch the aftermovie to feel the energy.</a></p>
              <p>&nbsp;</p>
            </div>
          </li>
        </div>
      </ul>
      <div class="alm-btn-wrap"><button id="load-more" class="alm-load-more-btn more">Older Posts</button></div>
    </div>
  </div>
</div>

它很多，但我想展示它，因为我不确切地知道问题在哪里。我将尝试解释我使用的类在HTML中的位置

这是我在项目中使用的唯一的2个n个孩子的，它们不能工作。

.alm-listing > li:nth-child(4) {
    padding: 0 10px;
    margin-top: 5%
}

.alm-listing > li:nth-child(3) {
    position: absolute;
    top: 20%;
    left: 0;
    right: 0;
    color: #fff
}

.alm-listing类从第四个HTML元素开始；无序列表然后css应选择该UL中的列表元素。在这些列表元素中，第三个和第四个元素(两个不同的段落)应该由第n个孩子选择。不要担心带有list-content类的div，我试着去掉它，但css仍然不起作用。

如果有任何人可以帮助我，我将非常感激！

Answer 1

我认为你的问题是你试图像alm-listing > li那样直接在<ul>中设置<li>样式，但是你在另一个div中有<li>标记。

​

​

尝尝这个

.alm-listing > div > li:nth-child(4) {
    padding: 0 10px;
    margin-top: 5%
}

.alm-listing > div > li:nth-child(3) {
    position: absolute;
    top: 20%;
    left: 0;
    right: 0;
    color: #fff
}

Answer 2

是的，所以我想我找到问题了。不是CSS的问题。我取消了我的CSS，这样我就可以更容易地安排一些媒体查询。unminify之后是问题开始的时候。2天前，我找到了我的CSS备份(缩小版)。当我将缩小的版本上传到我的网站时，第n个孩子就会像他们应该的那样工作。我解压了缩小的备份并上传到我的网站上，瞧，我的代码停止工作了……我甚至不能相信这是一件事。如果有人想知道我用来解压的网站是什么，这里有: unminify.com和codepen.com的编辑器(整洁的CSS)。

嗯，我想我得重新开始了;/