如何隐藏从后面开始的第 n 个元素

Question

我试图从后面隐藏第 n 个 div 元素。 使用 :nth-last-child(n) 选择器只会隐藏 div 中的最后一个元素，而不是 div 本身。

我尝试了以下方法：

.block:nth-last-child(1) {display:none;}
以上没有做任何事情

.block :nth-last-child(1) {display:none;}
以上只隐藏了div中的第n个元素

.block:nth-last-child(1) {display:none;} 

<div class='block'>
    <button type="button">a</button>
    <button type="button">b</button>
    <button type="button">c</button>
</div>
<div class='block'>
    <button type="button">a</button>
    <button type="button">b</button>
    <button type="button">c</button>
</div>
<div class='block'>
    <button type="button">a</button>
    <button type="button">b</button>
    <button type="button">c</button>
</div>
<div class='block'>
    <button type="button">a</button>
    <button type="button">b</button>
    <button type="button">c</button>
</div>

Answer 1

.block:nth-last-child(2) {display:none;}

Answer 2

需要一个“父”元素才能有一个“子”

.block:nth-last-child(2) {display:none;} 

<div class='parent'>
<div class='block'>
    <button type="button">a0</button>
    <button type="button">b0</button>
    <button type="button">c0</button>
</div>
<div class='block'>
    <button type="button">a1</button>
    <button type="button">b1</button>
    <button type="button">c1</button>
</div>
<div class='block'>
    <button type="button">a2</button>
    <button type="button">b2</button>
    <button type="button">c2</button>
</div>
<div class='block'>
    <button type="button">a3</button>
    <button type="button">b3</button>
    <button type="button">c3</button>
</div>
</div>

Answer 3

您的选择器错误，您需要指定您要选择的按钮。

类似的东西：

.block button:last-child {display:none;}

<div class='block'>
    <button type="button">1a</button>
    <button type="button">1b</button>
    <button type="button">1c</button>
</div>
<div class='block'>
    <button type="button">2a</button>
    <button type="button">2b</button>
    <button type="button">2c</button>
</div>
<div class='block'>
    <button type="button">3a</button>
    <button type="button">3b</button>
    <button type="button">3c</button>
</div>
<div class='block'>
    <button type="button">4a</button>
    <button type="button">4b</button>
    <button type="button">4c</button>
</div>