Html 在最后的博客部分，第n个孩子没有发生

blog-card\uuu img我需要做div的第n个子项（2），它有这个类，但它没有发生

你的第2个div标签不是blog-card\uu img，用blog-card\uu img替换blog-card\uu内容或添加以下内容：

 <div class="blog-card">

            <div class="blog-card__item blog">
                <div class="blog-card__img">
                    <img class="" src="./assests/img/2.jpg" alt="">
                </div>
                <div class="blog-card__content"></div>

---

我理解你的想法。是否要修改第二个.blog卡的.blog-card\uu img

• 它不起作用，因为在与classes.blog卡相同的级别上仍然有一个H4标记
• 为此，请将所有.blog-card类放在一个div中，并设置.blog-card\uuu img类的样式

最后一篇博客

...
...
...
...

CSS将如下所示：

<div class="blog-card-container">
    <div class="blog-card">
        <div class="blog-card__item blog">
            <div class="blog-card__img ">
                <img class="" src="./assests/img/1.jpg"
                alt="">
            </div>
            <div class="blog-card__content">
                ...
            </div>
        </div>
    </div>

    <div class="blog-card">
        <div class="blog-card__item blog">
            <div class="blog-card__img ">
                <img class="" src="./assests/img/2.jpg"
                alt="">
            </div>
            <div class="blog-card__content">
                ...
            </div>
        </div>
    </div>

    <div class="blog-card">
        <div class="blog-card__item blog">
            <div class="blog-card__img ">
                <img class="" src="./assests/img/3.jpg"
                alt="">
            </div>
            <div class="blog-card__content">
                ...
            </div>
        </div>
    </div>

    <div class="blog-card">
        <div class="blog-card__item blog">
            <div class="blog-card__img ">
                <img class="" src="./assests/img/4.jpg"
                alt="">
            </div>
            <div class="blog-card__content">
                ...
            </div>
        </div>
    </div>
</div>

.blog-card容器。blog-card:n个孩子（2）。blog-card\uu img{
//你的风格
}

但是有3个博客卡元素和2个。我想给blog-card元素的blog-card图片增加一个不同的功能。你能给我完整的代码并更好地解释一下吗？我想我还是不明白你的意思你能给我GitHub邮件吗？是的，我的邮件：egooats@gmail.comI邀请您，当您查看代码时，您就会知道我想要做什么。

<div class="blog-card-container">
    <div class="blog-card">
        <div class="blog-card__item blog">
            <div class="blog-card__img ">
                <img class="" src="./assests/img/1.jpg"
                alt="">
            </div>
            <div class="blog-card__content">
                ...
            </div>
        </div>
    </div>

    <div class="blog-card">
        <div class="blog-card__item blog">
            <div class="blog-card__img ">
                <img class="" src="./assests/img/2.jpg"
                alt="">
            </div>
            <div class="blog-card__content">
                ...
            </div>
        </div>
    </div>

    <div class="blog-card">
        <div class="blog-card__item blog">
            <div class="blog-card__img ">
                <img class="" src="./assests/img/3.jpg"
                alt="">
            </div>
            <div class="blog-card__content">
                ...
            </div>
        </div>
    </div>

    <div class="blog-card">
        <div class="blog-card__item blog">
            <div class="blog-card__img ">
                <img class="" src="./assests/img/4.jpg"
                alt="">
            </div>
            <div class="blog-card__content">
                ...
            </div>
        </div>
    </div>
</div>

<style>
.blog-card-container .blog-card:nth-child(2) .blog-card__img {
  // Your Style
 }
</style>