Question

我尝试将css调用到div类内部div类中。请解决我的代码？

Html代码：

<div class="underpost_3c_head">
    <div class="underpost_3c_head_title">hhh1 </div>

    <div class="underpost_2nd_page_head_title">
        <div class="2nd_page_head_result">hhh</div>
        <div class="2nd_page_head_result">hhh</div>
        <div class="2nd_page_head_result">hhh</div>
        <div class="2nd_page_head_result">hhh</div>
    </div>

    <div class="underpost_3rd_page_head_title">
        <div class="3rd_page_head_result">hhh</div>
        <div class="3rd_page_head_result">hhh</div>
        <div class="3rd_page_head_result">hhh</div>
        <div class="3rd_page_head_result">hhh</div>
    </div>

</div>

我如何选择所有课程？我试试：

.2nd_page_head_result {
  width: 110px;
  padding-left:5px;
}

和

div.2nd_page_head_result {
  padding-left:5px;
}

但它没有用。请帮我解决这个问题。

Answer 1

您无法使用数字启动班级名称和/或ID。

＆＃13;

.nd_page_head_result {
  width: 110px;
  padding-left: 5px;
  background: wheat;
}

＆＃13;

<div class="underpost_3c_head">
  <div class="underpost_3c_head_title">hhh1</div>

  <div class="underpost_2nd_page_head_title">
    <div class="nd_page_head_result">hhh</div>
    <div class="nd_page_head_result">hhh</div>
    <div class="nd_page_head_result">hhh</div>
    <div class="nd_page_head_result">hhh</div>
  </div>

  <div class="underpost_3rd_page_head_title">
    <div class="3rd_page_head_result">hhh</div>
    <div class="3rd_page_head_result">hhh</div>
    <div class="3rd_page_head_result">hhh</div>
    <div class="3rd_page_head_result">hhh</div>
  </div>

</div>

＆＃13;

然而，有一种解决方法：

[class="3rd_page_head_result"] {color: red;}

https://benfrain.com/when-and-where-you-can-use-numbers-in-id-and-class-names/

如何将css调用到div类内部div类？

1 个答案: