有了一个带复选框的纯css手风琴，你能打开和关闭所有打开的选项卡吗

Question

代码来自这里-->https://codepen.io/raubaca/pen/PZzpVe

我已经研究了类似问题的其他答案。实际上没有什么能充分回答这个问题。或者它们是关于稍微收敛的问题，或者使用jquery等，或者使用不同格式的css。

当使用checkbox方法制作一个可以同时打开多个选项卡的纯css手风琴时，是否可以同时关闭所有选项卡？同时打开所有选项卡？我假设我可以做类似input:unchecked ~ .tab-content {...}的事情，但css规范中没有input:unchecked。

@charset "UTF-8";
body {
color: #2c3e50;
background: #ecf0f1;
padding: 0 1em 1em;
}
h1 {
margin: 0;
line-height: 2;
text-align: center;
}
h2 {
margin: 0 0 0.5em;
font-weight: normal;
}
input {
position: absolute;
opacity: 0;
z-index: -1;
}
.row {
display: flex;
}
.row .col {
flex: 1;
}
.row .col:last-child {
margin-left: 1em;
}
/* Accordion styles */
.tabs {
border-radius: 8px;
overflow: hidden;
box-shadow: 0 4px 4px -2px rgba(0, 0, 0, 0.5);
}
.tab {
width: 100%;
color: white;
overflow: hidden;
}
.tab-label {
display: flex;
justify-content: space-between;
padding: 1em;
background: #2c3e50;
font-weight: bold;
cursor: pointer;
/* Icon */
}
.tab-label:hover {
background: #1a252f;
}
.tab-label::after {
content: "❯";
width: 1em;
height: 1em;
text-align: center;
transition: all 0.35s;
}
.tab-content {
max-height: 0;
padding: 0 1em;
color: #2c3e50;
background: white;
transition: all 0.35s;
}
.tab-close, .tab-open {
display: flex;
justify-content: flex-end;
padding: 1em;
font-size: 0.75em;
background: #2c3e50;
cursor: pointer;
}
.tab-close:hover {
background: #1a252f;
}
input:checked + .tab-label {
background: #1a252f;
}
input:checked + .tab-label::after {
transform: rotate(90deg);
}
input:checked ~ .tab-content {
max-height: 100vh;
padding: 1em;
}

<!-- <h1>Pure CSS Accordion <sup>2.0</sup></h1> -->
<div class="row">
<div class="col">
<h2>Open <b>multiple</b></h2>
<div class="tabs">
<div class="tab">
<input type="checkbox" id="chck0" name="chk">
<label for="chck0" class="tab-open">Open All &times;</label>
</div>
<div class="tab">
<input type="checkbox" id="chck1"  name="chk">
<label class="tab-label" for="chck1">Item 1</label>
<div class="tab-content">
Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsum, reiciendis!
</div>
</div>
<div class="tab">
<input type="checkbox" id="chck2"  name="chk">
<label class="tab-label" for="chck2">Item 2</label>
<div class="tab-content">
Lorem ipsum dolor sit amet consectetur adipisicing elit. A, in!
</div>
</div>
<div class="tab">
<input type="checkbox" id="chck3" name="chk">
<label for="chck3" class="tab-close">Close All &times;</label>
</div>
</div>
</div>

Answer 1

只使用css所能做的最好的事情就是全部打开——你不可能全部关闭(只需将它们恢复到原始状态(。首先，您需要将切换复选框移到选项卡之外，使其与手风琴选项卡处于同一级别，然后您可以在下面的片段末尾使用这三种样式

如果你需要一个关闭所有，你必须使用js来取消选中已经被选中的复选框来打开它们-css不能做这个

@charset "UTF-8";
body {
color: #2c3e50;
background: #ecf0f1;
padding: 0 1em 1em;
}
h1 {
margin: 0;
line-height: 2;
text-align: center;
}
h2 {
margin: 0 0 0.5em;
font-weight: normal;
}
input {
position: absolute;
opacity: 0;
z-index: -1;
}
.row {
display: flex;
}
.row .col {
flex: 1;
}
.row .col:last-child {
margin-left: 1em;
}

/* Accordion styles */
.tabs {
border-radius: 8px;
overflow: hidden;
box-shadow: 0 4px 4px -2px rgba(0, 0, 0, 0.5);
}
.tab {
width: 100%;
color: white;
overflow: hidden;
}
.tab-label {
display: flex;
justify-content: space-between;
padding: 1em;
background: #2c3e50;
font-weight: bold;
cursor: pointer;
/* Icon */
}
.tab-label:hover {
background: #1a252f;
}
.tab-label::after {
content: "❯";
width: 1em;
height: 1em;
text-align: center;
transition: all 0.35s;
}
.tab-content {
max-height: 0;
padding: 0 1em;
color: #2c3e50;
background: white;
transition: all 0.35s;
}
.tab-close,
.tab-open {
display: flex;
justify-content: flex-end;
padding: 1em;
font-size: 0.75em;
background: #2c3e50;
cursor: pointer;
}
.tab-close:hover {
background: #1a252f;
}
input:checked+.tab-label {
background: #1a252f;
}
input:checked+.tab-label::after {
transform: rotate(90deg);
}
input:checked~.tab-content {
max-height: 100vh;
padding: 1em;
}
#chck0+label:before {
content: 'Open All';
color: #ffffff;
}
#chck0:checked+label:before {
content: 'Return to previous state';
}
#chck0:checked~.tab .tab-content {
max-height: 100vh;
padding: 1em;
}

<!-- <h1>Pure CSS Accordion <sup>2.0</sup></h1> -->
<div class="row">
<div class="col">
<h2>Open <b>multiple</b></h2>
<div class="tabs">
<input type="checkbox" id="chck0" name="chk">
<label for="chck0" class="tab-open"> &times;</label>
<div class="tab">
<input type="checkbox" id="chck1" name="chk">
<label class="tab-label" for="chck1">Item 1</label>
<div class="tab-content">
Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsum, reiciendis!
</div>
</div>
<div class="tab">
<input type="checkbox" id="chck2" name="chk">
<label class="tab-label" for="chck2">Item 2</label>
<div class="tab-content">
Lorem ipsum dolor sit amet consectetur adipisicing elit. A, in!
</div>
</div>
</div>
</div>

事实上，你可以将其扩展为使用单选按钮作为切换，然后你也可以关闭：

@charset "UTF-8";
body {
color: #2c3e50;
background: #ecf0f1;
padding: 0 1em 1em;
}
h1 {
margin: 0;
line-height: 2;
text-align: center;
}
h2 {
margin: 0 0 0.5em;
font-weight: normal;
}
input {
position: absolute;
opacity: 0;
z-index: -1;
}
.row {
display: flex;
}
.row .col {
flex: 1;
}
.row .col:last-child {
margin-left: 1em;
}

/* Accordion styles */
.tabs {
border-radius: 8px;
overflow: hidden;
box-shadow: 0 4px 4px -2px rgba(0, 0, 0, 0.5);
}
.tab {
width: 100%;
color: white;
overflow: hidden;
}
.tab-label {
display: flex;
justify-content: space-between;
padding: 1em;
background: #2c3e50;
font-weight: bold;
cursor: pointer;
/* Icon */
}
.tab-label:hover {
background: #1a252f;
}
.tab-label::after {
content: "❯";
width: 1em;
height: 1em;
text-align: center;
transition: all 0.35s;
}
.tab-content {
max-height: 0;
padding: 0 1em;
color: #2c3e50;
background: white;
transition: all 0.35s;
}
.tab-close,
.tab-open {
display: flex;
justify-content: flex-end;
padding: 1em;
font-size: 0.75em;
background: #2c3e50;
cursor: pointer;
}
.tab-close:hover {
background: #1a252f;
}
input:checked+.tab-label {
background: #1a252f;
}
input:checked+.tab-label::after {
transform: rotate(90deg);
}
input:checked~.tab-content {
max-height: 100vh;
padding: 1em;
}
.toggle-label {
color: #000000;
}
#open-all:checked~.tab .tab-content {
max-height: 100vh;
padding: 1em;
}
#open-all:checked~#open-all-label,
#close-all:checked~#close-all-label,
#reset-all:checked~#reset-all-label {
display: none;
}
#close-all:checked~.tab .tab-content {
max-height: 0;
padding: 0;
}

<!-- <h1>Pure CSS Accordion <sup>2.0</sup></h1> -->
<div class="row">
<div class="col">
<h2>Open <b>multiple</b></h2>
<div class="tabs">
<input type="radio" id="reset-all" name="toggle" checked>
<input type="radio" id="open-all" name="toggle">
<input type="radio" id="close-all" name="toggle">
<label for="reset-all" class="toggle-label" id="reset-all-label">Reset &times;</label>
<label for="open-all" class="toggle-label" id="open-all-label">Open All &times;</label>
<label for="close-all" class="toggle-label" id="close-all-label">Close All &times;</label>
<div class="tab">
<input type="checkbox" id="chck1" name="chk">
<label class="tab-label" for="chck1">Item 1</label>
<div class="tab-content">
Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsum, reiciendis!
</div>
</div>
<div class="tab">
<input type="checkbox" id="chck2" name="chk">
<label class="tab-label" for="chck2">Item 2</label>
<div class="tab-content">
Lorem ipsum dolor sit amet consectetur adipisicing elit. A, in!
</div>
</div>
</div>
</div>